Easy Mummy Sugar Cookies: Best Halloween Royal Icing Treat

Third batch in three days and I finally figured out why the royal icing kept sliding off the cookie. Turns out, the butter content in the dough was creating a tiny oil slick on the surface — nothing a quick 10-minute freezer rest couldn’t fix. These mummy sugar cookies had me in a chokehold, and honestly, I wasn’t even mad about it.

There’s something about a cookie that looks a little bit messy on purpose that just works for Halloween. You don’t need a steady hand or years of decorating experience to make these little guys look good. In fact, the more imperfect the icing lines, the more authentic the mummy bandages look. It’s the rare recipe where “good enough” actually looks better than perfect.

I started making these for a small Halloween gathering, and by the time the party rolled around, I’d already eaten three test batches. The cookies themselves are a classic soft sugar cookie base — not too sweet, sturdy enough to hold icing, with just a hint of vanilla. The royal icing sets up firm but still has that satisfying snap when you bite into it. And the candy eyes? Non-negotiable. They’re what makes the whole thing work.

This recipe stuck because it’s the kind of thing you can actually make with kids, or while watching a movie, or when you need a low-stakes creative outlet that ends with something edible. No piping bags required — a small offset spatula or even a butter knife will do the trick. By the end of this post, you’ll have a dozen mummy cookies that look like they came from a bakery, but taste like they came from your kitchen.

Why You’ll Love This Recipe

• No fancy decorating skills needed — The whole point is that the icing looks messy. If you can drizzle, you can make these.
• Simple ingredients — Butter, sugar, flour, eggs, and powdered sugar. Nothing weird or hard to find.
• Perfect for Halloween parties — These are the first cookies to disappear from any dessert table. Kids go crazy for the candy eyes.
• Make-ahead friendly — Bake the cookies days in advance and ice them when you’re ready. The royal icing keeps them fresh.
• Better than store-bought — Homemade sugar cookies have a texture and flavor that packaged cookies just can’t match. The slight chewiness around the edges and soft center? That’s the good stuff.

I’ve tested this recipe six times to get the royal icing consistency just right. Too thin and it runs off the cookie. Too thick and it doesn’t spread into those nice bandage lines. The sweet spot is somewhere between honey and maple syrup — thin enough to flow, thick enough to stay put. That’s the kind of detail you only learn by messing up a few batches first.

What Ingredients You Will Need

This recipe uses basic baking staples to create something that looks way more complicated than it actually is. Here’s what you’ll need to gather before you start.

For the Sugar Cookies:

• 1 cup (226g) unsalted butter, softened — I use Kerrygold for the flavor, but any good-quality butter works. Make sure it’s truly softened, not melted.
• 1 cup (200g) granulated sugar — Regular white sugar gives these cookies the right structure and sweetness.
• 1 large egg, room temperature — Cold eggs can seize the butter mixture, so let yours sit out for 30 minutes.
• 1 teaspoon vanilla extract — Pure vanilla makes a difference here. Skip the imitation stuff.
• ½ teaspoon almond extract (optional) — This adds a subtle nutty flavor that makes these cookies taste bakery-level. I never skip it.
• 2 ½ cups (312g) all-purpose flour — Spoon and level your flour for accuracy. Scooping directly from the bag packs in too much.
• ½ teaspoon baking powder — Helps the cookies spread just enough without turning into pancakes.
• ¼ teaspoon salt — Balances the sweetness and enhances the vanilla flavor.

For the Royal Icing:

• 3 cups (340g) powdered sugar, sifted — Sifting removes lumps that can clog your piping tip or create bumps in the icing.
• 2 large egg whites — Use pasteurized egg whites if you’re worried about raw eggs. Meringue powder works too (follow package directions).
• 1 teaspoon vanilla extract — Keeps the flavor consistent with the cookie base.
• 1 tablespoon fresh lemon juice — The acidity helps stabilize the icing and cuts the sweetness. Don’t skip it.
• Water — For thinning the icing to the right consistency. Add one teaspoon at a time.

For Decoration:

• Candy eyes — The classic googly ones with black pupils. You can find them at craft stores or online. Buy extra because you will snack on them.
• Black gel food coloring — For piping the mouths. You can skip this if you want faceless mummies, but the faces make them cuter.

I tested this recipe with both all-purpose flour and a gluten-free 1:1 blend. The gluten-free version worked but produced a slightly crumblier cookie. Stick with regular flour for the best texture.

Equipment Needed

• Stand mixer or hand mixer — You’ll need something to cream the butter and sugar, and later to whip the royal icing. A hand mixer works fine.
• Rolling pin — A standard rolling pin works, but I prefer a French tapered pin for better control. If you don’t have one, use a wine bottle in a pinch.
• 2-inch round cookie cutter — This is the perfect size for mummies. You can use a drinking glass rim if you don’t have a cutter.
• Baking sheets — Rimmed sheets work best. Line them with parchment paper or a silicone baking mat.
• Piping bags or zip-top bags — For the royal icing. If using zip-top bags, snip a tiny corner off the bottom.
• Small offset spatula — Helps spread the icing evenly if you’re not piping. A butter knife works too.
• Wire cooling rack — Essential for letting the royal icing set without sticking to anything.

I’ve made these cookies with both a $5 cookie cutter from the grocery store and a fancy set from a kitchen boutique. They turned out the same. Don’t overthink the equipment.

Preparation Method

1. Cream the butter and sugar. In a large mixing bowl, beat the softened butter and granulated sugar together on medium speed for 3-4 minutes until light and fluffy. Scrape down the sides of the bowl halfway through. The mixture should look pale and slightly increased in volume.
2. Add the wet ingredients. Beat in the egg, vanilla extract, and almond extract (if using) until fully combined. The mixture might look slightly curdled at this point — that’s normal. Don’t panic.
3. Mix the dry ingredients. In a separate bowl, whisk together the flour, baking powder, and salt. Gradually add this to the wet mixture, mixing on low speed until just combined. Stop when you no longer see streaks of flour. Overmixing makes tough cookies.
4. Chill the dough. Wrap the dough in plastic wrap and flatten it into a disc. Refrigerate for at least 1 hour, or up to 3 days. Chilling is non-negotiable — it prevents the cookies from spreading too much and makes them easier to roll out.
5. Preheat and prepare. When you’re ready to bake, preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper or silicone mats.
6. Roll and cut. On a lightly floured surface, roll the chilled dough to about ¼-inch thickness. Cut out rounds with your 2-inch cookie cutter. Re-roll the scraps once and cut more rounds. Discard or re-chill the remaining scraps after the second roll.
7. Bake. Place the cookies about 2 inches apart on the prepared baking sheets. Bake for 8-10 minutes, or until the edges are just barely golden. The centers should look set but not brown. Let the cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.
8. Make the royal icing. In a clean mixing bowl, beat the egg whites and lemon juice together until frothy. Gradually add the sifted powdered sugar, beating on low speed until combined. Increase to medium-high and beat for 4-5 minutes until the icing is thick, glossy, and holds stiff peaks.
9. Adjust the consistency. For the mummy bandages, you want a flood consistency. Add water one teaspoon at a time, stirring gently, until the icing flows like thick honey. When you lift the spoon, the ribbon of icing should disappear back into the bowl within 10 seconds.
10. Pipe the mummies. Transfer the icing to a piping bag or zip-top bag with a small snipped corner. Starting at one edge of a cooled cookie, pipe thin, uneven lines back and forth across the cookie, leaving a small gap for the eyes. Don’t overthink the pattern — mummies are supposed to look haphazard.
11. Add the eyes. While the icing is still wet, press two candy eyes into the gap you left. Gently push them down so they stick. Let the icing set for 15-20 minutes.
12. Pipe the mouths. Once the white icing has set slightly, use black gel food coloring (or leftover royal icing tinted black) to pipe a small zigzag or wavy line for the mouth. This step is optional but makes the mummies way more expressive.
13. Let set completely. Leave the decorated cookies at room temperature for 4-6 hours, or overnight, until the royal icing is completely hard to the touch. Don’t stack them until the icing is fully set.

One thing I learned the hard way — don’t rush the cooling step. If the cookies are even slightly warm when you start icing, the royal icing will melt into a puddle. Wait until they’re completely cool to the touch. Trust me on this.

Cooking Tips & Techniques

Get the butter right. Softened butter should give slightly when you press it, but still hold its shape. If it’s greasy or shiny, it’s too soft. Microwave it for 5 seconds at a time if you forgot to take it out of the fridge — just don’t melt it.

Chill the dough twice if needed. If the dough gets sticky while you’re rolling it out, pop it back in the fridge for 10 minutes. Warm dough sticks to the counter and makes ugly cookies. I speak from experience.

Use a toothpick for air bubbles. After piping the icing, you might see tiny air bubbles on the surface. Pop them with a toothpick before the icing starts to set. It takes two seconds and makes the finish look cleaner.

Work in batches. Don’t try to ice all the cookies at once. The icing will start to set in the piping bag if you take too long. Ice 4-5 cookies at a time, add the eyes, then move on to the next batch.

Store properly. Once the royal icing is completely set, store the cookies in an airtight container at room temperature. Don’t refrigerate them — the humidity can make the icing tacky. They’ll stay fresh for up to a week.

I once tried to make these cookies with a friend who insisted on piping perfect, straight lines. They looked like they had mummy bandages designed by a robot. Not cute. The charm of these cookies is in the chaos — uneven lines, random gaps, eyes that look slightly startled. Embrace the imperfection.

Variations & Adaptations

Gluten-free version. Substitute the all-purpose flour with a 1:1 gluten-free baking blend that contains xanthan gum. The dough will be slightly more fragile, so chill it for an extra 30 minutes before rolling. The cookies won’t spread as much, so press them down slightly before baking.

Vegan mummies. Use vegan butter and a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water) for the cookies. For the royal icing, replace the egg whites with aquafaba — the liquid from a can of chickpeas. Whip it the same way you would egg whites; it works surprisingly well.

Chocolate version. Replace ¼ cup of the flour with unsweetened cocoa powder. The chocolate cookies look amazing with the white royal icing bandages — like dark chocolate mummies. Add a teaspoon of espresso powder to deepen the chocolate flavor without making it taste like coffee.

Spooky color twist. Tint the royal icing with gel food coloring instead of keeping it white. Pale green, light purple, or even a faint orange works well for Halloween. Just remember that the candy eyes will stand out more against darker backgrounds.

Mini mummies. Use a 1-inch cookie cutter to make bite-sized mummies. Reduce the baking time to 6-7 minutes. These are perfect for Halloween party platters or lunchbox surprises.

I tried a version last year where I added a pinch of cinnamon and nutmeg to the dough. It gave the cookies a subtle warmth that paired beautifully with the sweet royal icing. Not traditional, but definitely worth repeating.

Serving & Storage Suggestions

Serve these mummy sugar cookies at room temperature. The royal icing should be completely set and hard to the touch — that satisfying snap when you bite into them is part of the experience.

These cookies pair beautifully with a glass of cold milk, a warm mug of apple cider, or even a cup of hot chocolate with marshmallows. For Halloween parties, arrange them on a platter with other spooky treats like peanut butter cup brownie cheesecake bars or patriotic sugar cookie bites for a themed dessert spread that covers all the bases.

Store the decorated cookies in an airtight container at room temperature for up to 7 days. Layer them between sheets of parchment paper if you need to stack them. Do not refrigerate — the moisture will soften the royal icing and make it sticky.

For longer storage, freeze the undecorated cookies for up to 3 months. Wrap them tightly in plastic wrap and place them in a freezer-safe bag. Thaw at room temperature, then decorate as directed. The royal icing itself doesn’t freeze well, so always ice after thawing.

The cookies actually taste better on day two. The flavors settle and the texture softens slightly, making them even more tender. If you can resist eating them all on day one, you’ll be rewarded.

Nutritional Information & Benefits

Per cookie (based on 24 cookies): Approximately 150 calories, 6g fat, 22g carbohydrates, 2g protein, 12g sugar. These numbers are estimates and will vary based on ingredient brands and exact measurements.

While these are definitely a treat, the sugar cookie base uses real butter and eggs, which provide some protein and healthy fats. The royal icing contains egg whites, which are a good source of protein. The lemon juice in the icing adds a small amount of vitamin C and helps stabilize the icing without extra sugar.

For those with dietary restrictions, the gluten-free and vegan variations listed above work well. The cookies are naturally nut-free if you skip the almond extract. Always check your candy eyes for potential allergens — some brands contain wheat starch or are processed in facilities that handle nuts.

I don’t pretend these are health food. They’re Halloween cookies. But making them from scratch means you control the ingredients — no preservatives, no artificial flavors, no mystery additives. That counts for something.

Conclusion

These mummy sugar cookies are the kind of recipe that makes you look like a Halloween hero without requiring professional baking skills. The soft, buttery cookie paired with the crisp royal icing and those adorable candy eyes — it’s a combination that works every single time.

I love that this recipe gives you permission to be messy. There’s no pressure to make perfect lines or symmetrical patterns. The mummies that look the most haphazard are usually the ones that get the most compliments. Let the icing drip where it wants to go. Embrace the chaos.

If you make these, leave a comment and let me know how they turned out. Did your kids help decorate? Did you try a fun color variation? I’d love to hear about it. And if you’re looking for more Halloween baking inspiration, check out these M&M chocolate chip cookies for another festive treat that’s just as fun to make.

Happy Halloween, and happy baking. You’ve got this.

Frequently Asked Questions

Can I use store-bought sugar cookie dough instead?

You can, but the texture won’t be the same. Homemade dough has a better flavor and holds its shape during baking. If you’re short on time, look for a refrigerated sugar cookie dough that’s designed to be rolled and cut, not the pre-shaped logs.

How do I fix royal icing that’s too thick?

Add water one teaspoon at a time and stir gently. Don’t whisk vigorously — that adds air bubbles. The ideal consistency is thick enough to hold its shape but thin enough to spread slightly when piped.

Can I make these cookies ahead of time?

Yes. Bake the cookies up to 3 days in advance and store them in an airtight container at room temperature. Decorate them the day you plan to serve them for the freshest look. The royal icing needs 4-6 hours to set completely.

Why did my cookies spread too much?

Your dough was probably too warm when it went into the oven, or your butter was too soft. Make sure the dough is thoroughly chilled before baking. If your kitchen is warm, chill the cut-out cookies on the baking sheet for 10 minutes before baking.

Can I freeze the decorated cookies?

Not recommended. The royal icing can crack or become tacky during freezing and thawing. Freeze the undecorated cookies instead, then thaw and decorate when you’re ready to serve them.

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