King Cake Sugar Cookie Bars

Featured in: Sweet Prairie Treats

These bars feature a tender sugar cookie base infused with vanilla, almond, and lemon zest for a bright flavor profile. Once baked to golden perfection, they’re topped with smooth vanilla icing and sprinkled with purple, green, and gold sanding sugars, creating a festive presentation reminiscent of Mardi Gras colors. Easy to prepare and excellent for parties, these bars can be made ahead and stored in an airtight container. Optional additions like nutmeg or orange zest add an extra flair to suit your preferences.

Updated on Tue, 17 Feb 2026 11:41:00 GMT
Festive King Cake Sugar Cookie Bars topped with colorful purple, green, and gold sprinkles for Mardi Gras parties. Save to Pinterest
Festive King Cake Sugar Cookie Bars topped with colorful purple, green, and gold sprinkles for Mardi Gras parties. | honeyprairie.com

My friend texted me at 11 PM asking if I could bring something festive to her Mardi Gras party the next day, and instead of panicking, I thought about how much easier life gets when you skip the fussy decorating that comes with traditional King Cake. These sugar cookie bars happened because I wanted all that celebration in something I could actually make before sunrise, topped with the signature purple, green, and gold without needing a steady hand or any fancy piping skills. The first batch came out of the oven while she was still sleeping, and by the time guests arrived, they were already gone except for the one bar I'd hidden a plastic baby in, just to keep the tradition alive.

I'll never forget watching my nephew's face light up when he realized one of these bars had a little surprise inside—he bit into it and suddenly understood why people make such a big deal about King Cake every January. His mom had warned him before eating, so instead of shock, there was pure joy, and suddenly every kid at the table wanted to know if theirs had the treasure too. That one detail transformed these from nice cookies into an actual experience.

Ingredients

  • Unsalted butter (1 cup, softened): This is your foundation—make sure it's actually soft so you can cream it without muscling through, which just wastes energy.
  • Granulated sugar (1 1/4 cups): The sweetness level here is just right without being aggressive, and it creams beautifully with butter.
  • Large eggs (2): Room temperature eggs mix more smoothly and create a more tender crumb, so pull them out about 15 minutes before you start.
  • Vanilla extract and almond extract (2 teaspoons and 1/2 teaspoon): The vanilla is essential, but that almond extract is the secret that makes people ask what you did differently.
  • All-purpose flour (2 1/2 cups): Don't sift unless your flour is clumpy—just scoop and level, and you'll get the right amount.
  • Baking powder (1/2 teaspoon) and salt (1/2 teaspoon): These keep the bars from being too dense and add just enough lift without making them cake-like.
  • Ground cinnamon (1/4 teaspoon) and lemon zest (1): Cinnamon whispers in the background while lemon makes everything taste brighter and more interesting than plain sugar cookies.
  • Powdered sugar (2 cups) and milk (2–3 tablespoons): The milk amount depends on humidity that day, so add it slowly until you get a pourable but not-runny consistency.
  • Purple, green, and gold sanding sugar: Sanding sugar sticks better than regular sprinkles and looks more polished, but regular sprinkles work fine if that's what you have.

Instructions

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Prep your space and preheat:
Line your 9x13-inch pan with parchment paper so the edges hang over—this makes removing and slicing these bars almost effortless later. Preheat to 350°F while you gather everything, and your oven will be ready exactly when your dough is.
Cream butter and sugar into clouds:
Beat them together for 2–3 minutes until the mixture looks pale and fluffy, which means air is incorporated and your bars won't be dense. If you use a hand whisk, your arm will get tired, but you'll feel exactly when it's reached that light, pillowy stage.
Add eggs one at a time, then flavor:
After each egg, wait for it to fully blend before adding the next one, then add your vanilla, almond extract, and lemon zest. This gradual approach prevents the mixture from looking curdled and ensures everything is evenly distributed.
Mix dry ingredients separately:
Whisk flour, baking powder, salt, and cinnamon together so there are no pockets of baking powder hiding in the flour. This step takes two minutes and prevents weird bitter spots in your finished bars.
Combine wet and dry gently:
Add the dry mixture to the wet ingredients and mix just until combined—if you overmix, the bars will be tough instead of tender. Stop as soon as you don't see dry flour streaks anymore.
Spread dough and bake with confidence:
Use a spatula to get the dough into an even layer in your pan, then bake for 22–25 minutes until the edges are golden and the center feels set when you lightly touch it. The bars will continue to cook slightly after you pull them out, so don't wait for the center to feel completely firm.
Cool completely before icing:
This step cannot be rushed because warm cookies will melt your icing and it'll run off instead of sticking. While you wait, make your icing so it's ready the moment the bars have cooled.
Make icing and decorate immediately:
Whisk powdered sugar, milk, and vanilla until smooth and spreadable, then pour it over the cooled cookie base and smooth it out with a spatula. The moment you finish spreading, add your sanding sugars in sections or stripes because the icing needs to still be slightly tacky to catch them.
Let everything set and then slice:
Give the icing about 30 minutes to harden before you cut the bars, which prevents them from cracking or sliding around. Use a sharp knife and wipe it clean between cuts for neat edges.
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| honeyprairie.com

My mom asked me once why we bother with the plastic baby tradition, and I realized it's because the little moment of discovery turns a dessert into a story people remember and retell. These bars carry that same kind of magic—they're not complicated, but they're special in the way that matters most to people gathering around food.

Making Them Ahead Takes the Pressure Off

One of the best things about these bars is that you can make them 1–2 days before your party and keep them in an airtight container, which means you show up to the celebration relaxed instead of frantically finishing dessert while everyone's arriving. I learned this the hard way by stressing myself out trying to frost bars at the last minute, and it changed everything about how I plan parties now. The icing actually sets better over time, becoming firmer and more stable, so if anything, they're even better the next day.

Flavor Variations You Can Easily Try

The lemon zest in here is bright and unexpected, but you can swap it for orange zest if you want something slightly warmer, or add a tiny pinch of nutmeg to lean more into traditional King Cake flavors. I've also made these with just vanilla and no citrus zest on nights when I was low on supplies, and they're still wonderful—the almond extract carries enough personality that the bars don't feel plain. Experiment with what sounds good to you, and don't feel locked into the exact recipe because baking is more flexible than people think.

The Party Tradition Everyone Loves

These bars are especially perfect for Mardi Gras celebrations because they've got all the festive color without needing a whole King Cake and all the complexity that comes with it. The fun part isn't just eating them—it's watching people bite in and react, especially if they find the hidden baby or almond inside. Here's what makes the tradition work even better:

  • Always warn guests before serving if you've hidden something inside, because nobody wants a surprise like that without consent.
  • Keep the plastic baby or almond visible on the table so people know what they're looking for and the excitement builds throughout dessert.
  • Take a photo of whoever wins the treasure because these moments are the ones people actually bring up later when they remember your party.
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Soft and buttery King Cake Sugar Cookie Bars with lemon zest, cinnamon, and vibrant icing, perfect for celebrations. Save to Pinterest
Soft and buttery King Cake Sugar Cookie Bars with lemon zest, cinnamon, and vibrant icing, perfect for celebrations. | honeyprairie.com

These bars live in that perfect space between easy enough for a weeknight and festive enough for celebration, which is exactly where the best party food should live. Make them once and you'll find yourself making them again for every gathering that needs a little color and joy.

Questions & Answers

What is the best way to avoid overbaking the bars?

Keep an eye on the edges for a light golden color and make sure the center feels set but still soft before removing from the oven.

Can almond extract be omitted or substituted?

Yes, almond extract is optional and can be omitted or replaced with a small amount of extra vanilla extract to maintain flavor balance.

How should I store the bars to maintain freshness?

Store the bars in an airtight container at room temperature for 1-2 days or refrigerate for longer freshness.

What is the texture of the sugar cookie base?

The base is soft yet slightly chewy with subtle cinnamon and citrus notes, providing a rich foundation for the smooth icing and crunchy sprinkles.

Can the lemon zest be substituted with another citrus?

Yes, orange zest can be used as a flavorful alternative, offering a sweeter citrus aroma to complement the other ingredients.

King Cake Sugar Cookie Bars

Vibrant sugar cookie bars with colorful icing and sprinkles, ideal for Mardi Gras and festive occasions.

Prep duration
20 minutes
Cook duration
25 minutes
Overall time needed
45 minutes
Recipe by Honey Prairie Abigail Greene


Skill Level Easy

Cuisine type American Southern Mardi Gras

Makes 24 Number of portions

Diet specifications Meatless

What You'll Need

Sugar Cookie Base

01 1 cup unsalted butter, softened
02 1 1/4 cups granulated sugar
03 2 large eggs
04 2 teaspoons vanilla extract
05 1/2 teaspoon almond extract, optional
06 2 1/2 cups all-purpose flour
07 1/2 teaspoon baking powder
08 1/2 teaspoon salt
09 1/4 teaspoon ground cinnamon
10 Zest of 1 lemon

Icing

01 2 cups powdered sugar
02 2 to 3 tablespoons milk
03 1 teaspoon vanilla extract

Decoration

01 Purple, green, and gold sanding sugar or sprinkles

How to Make It

Step 01

Prepare Baking Pan: Preheat oven to 350°F. Line a 9x13-inch baking pan with parchment paper, allowing edges to overhang for easy removal.

Step 02

Cream Butter and Sugar: In a large mixing bowl, cream together softened butter and granulated sugar until light and fluffy, approximately 2 to 3 minutes.

Step 03

Incorporate Eggs and Extracts: Beat in eggs one at a time, then add vanilla extract, almond extract if using, and lemon zest.

Step 04

Combine Dry Ingredients: In a separate bowl, whisk together flour, baking powder, salt, and cinnamon.

Step 05

Blend Wet and Dry Ingredients: Gradually add dry ingredient mixture to wet ingredients, stirring just until combined without overmixing.

Step 06

Spread Dough: Spread dough evenly into prepared baking pan using a spatula.

Step 07

Bake Cookie Base: Bake for 22 to 25 minutes until edges are lightly golden and center is set. Avoid overbaking.

Step 08

Cool Completely: Let cookie base cool completely in the pan on a wire rack.

Step 09

Prepare Icing: Whisk together powdered sugar, milk, and vanilla extract until smooth and pourable.

Step 10

Frost Base: Spread icing evenly over cooled cookie base.

Step 11

Apply Decoration: Immediately sprinkle purple, green, and gold sanding sugar in sections or decorative pattern.

Step 12

Set and Slice: Allow icing to set for approximately 30 minutes before slicing into bars.

Essential tools

  • 9x13-inch baking pan
  • Mixing bowls
  • Electric mixer or hand whisk
  • Spatula
  • Wire rack
  • Whisk

Allergy Details

Go through all ingredients to spot potential allergies. If unsure, check with a health expert.
  • Contains wheat and gluten
  • Contains eggs
  • Contains milk and dairy products
  • Contains tree nuts via optional almond extract

Nutrition details (per portion)

Details for informational use only — not a substitute for a medical professional.
  • Energy (calories): 190
  • Lipids: 8 g
  • Carbohydrates: 28 g
  • Proteins: 2 g