Chaos Cake Smores Cookie Bars

Featured in: Sweet Crunch

Chaos Cake Smores Cookie Bars bring together gooey chocolate chip cookie dough, crisp graham crackers, soft mini marshmallows, and pockets of rich milk chocolate for a dessert layered with bold flavors and textures. As each bar is baked, the marshmallows melt into the cookie dough while the graham crackers lend crunch and a nostalgic campfire feel. The finished bars are golden, slightly gooey in the center, and perfect for sharing. Enjoy warm for extra decadence, pair with coffee or milk, and consider customizing with additional chocolate types or nutty add-ins.

Updated on Thu, 30 Oct 2025 09:36:00 GMT
Decadent Chaos Cake S'mores Cookie Bars stacked high with chocolate and marshmallows. Save
Decadent Chaos Cake S'mores Cookie Bars stacked high with chocolate and marshmallows. | kookycrunch.com

A decadent, multi-layered dessert bar combining chocolate chip cookie dough, graham crackers, gooey marshmallows, and rich chocolate, inspired by classic campfire smores with a fun, chaotic twist.

I first made these for a backyard campfire party, and the gooey center with crispy edges was an instant hit. The playful layers always get everyone excited for dessert.

Ingredients

  • Cookie Dough Layer: 1 cup (225 g) unsalted butter, softened, 1 cup (200 g) light brown sugar, packed, 1/2 cup (100 g) granulated sugar, 2 large eggs, 2 tsp vanilla extract, 2 1/2 cups (315 g) all-purpose flour, 1 tsp baking soda, 1/2 tsp salt, 2 cups (340 g) semisweet chocolate chips
  • Smores Layers: 8 full sheets graham crackers, 2 cups (100 g) mini marshmallows, 8 oz (225 g) milk chocolate bars, broken into pieces
  • Topping: 1/2 cup (85 g) chocolate chips, 1/2 cup (25 g) mini marshmallows, 1 graham cracker, crushed

Instructions

Prepare the Pan:
Preheat oven to 350°F (175°C). Line a 9x13-inch (23x33 cm) baking pan with parchment paper, leaving an overhang for easy removal.
Mix the Dough:
Cream together butter, brown sugar, and granulated sugar until light and fluffy. Beat in eggs one at a time, then add vanilla extract.
Combine Dry Ingredients:
In a separate bowl, whisk together flour, baking soda, and salt.
Finish Dough:
Gradually mix dry ingredients into wet, mixing just until combined. Fold in semisweet chocolate chips.
Layer & Assemble:
Press half the dough into the pan. Layer graham crackers over dough. Sprinkle marshmallows and milk chocolate pieces evenly. Drop spoonfuls of remaining dough and gently spread to cover. Add additional chocolate chips, mini marshmallows, and crushed graham cracker on top.
Bake & Serve:
Bake 28 to 32 minutes until golden brown and set, center should be slightly gooey. Cool completely before lifting out and cutting into bars.
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Making these with my kids turns into a joyful kitchen adventure and everyone's favorite step is sprinkling marshmallows before baking.

Required Tools

You'll need a 9x13-inch (23x33 cm) baking pan, parchment paper, two mixing bowls, an electric mixer or whisk, a rubber spatula, and measuring cups and spoons.

Allergen Information

Contains wheat, eggs, milk, and soy. May contain nuts if using peanut butter cups or depending on chocolate brand. Always check ingredient labels for possible cross-contamination.

Nutritional Information

Each bar has around 370 calories, 17 g total fat, 52 g carbohydrates, and 3 g protein.

Gooey Chaos Cake S'mores Cookie Bars topped with crispy graham crackers and melted chocolate. Save
Gooey Chaos Cake S'mores Cookie Bars topped with crispy graham crackers and melted chocolate. | kookycrunch.com

Serve these chaos cake bars with cold milk or coffee for the ultimate treat. Enjoy the playful layers in every bite!

Recipe FAQ

What size pan works best for these bars?

A 9x13-inch (23x33 cm) baking pan gives optimal thickness and even baking for the layered bars.

Can I substitute dark chocolate for milk chocolate?

Yes, dark chocolate adds bolder flavor and less sweetness. Mix or swap as you prefer for your taste.

Is it possible to add nuts to the layers?

Absolutely! Chopped nuts or a layer of peanut butter cups add a crunchy or nutty twist to the bars.

How do I achieve extra gooey bars?

Serve the bars slightly warm after baking, or briefly microwave prior to serving for maximum gooeyness.

Can these dessert bars be made ahead?

Yes, store cooled bars in an airtight container for up to 3 days or freeze for longer freshness.

Are these suitable for vegetarians?

Yes, these bars are vegetarian-friendly if all chocolate and marshmallow ingredients are gelatin-free.

Chaos Cake Smores Cookie Bars

Multi-layered bars feature chocolate, graham, and marshmallows for a decadent, crowd-pleasing dessert option.

Prep duration
20 min
Cook duration
30 min
Complete duration
50 min
Created by Jake Peterson


Skill level Medium

Heritage American

Output 16 Portions

Diet considerations Meat-free

Components

Cookie Dough Layer

01 1 cup unsalted butter, softened
02 1 cup light brown sugar, packed
03 1/2 cup granulated sugar
04 2 large eggs
05 2 teaspoons vanilla extract
06 2 1/2 cups all-purpose flour
07 1 teaspoon baking soda
08 1/2 teaspoon salt
09 2 cups semisweet chocolate chips

Smores Layers

01 8 full sheets graham crackers
02 2 cups mini marshmallows
03 8 ounces milk chocolate bars, broken into pieces

Topping

01 1/2 cup chocolate chips
02 1/2 cup mini marshmallows
03 1 graham cracker, crushed

Directions

Phase 01

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

Phase 02

Cream Butter and Sugars: In a large mixing bowl, beat together butter, brown sugar, and granulated sugar until mixture is light and fluffy.

Phase 03

Add Eggs and Vanilla: Incorporate eggs one at a time, blending well after each addition, followed by vanilla extract.

Phase 04

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

Phase 05

Mix Dough: Gradually blend dry mixture into wet ingredients, mixing on low speed until just combined.

Phase 06

Fold in Chips: Stir in semisweet chocolate chips evenly into cookie dough mixture.

Phase 07

Assemble First Layer: Evenly press half the cookie dough into prepared pan.

Phase 08

Layer Graham Crackers: Arrange graham cracker sheets over dough, breaking them to create a single, even layer.

Phase 09

Add Marshmallows and Chocolate Bars: Distribute mini marshmallows and milk chocolate bar pieces evenly over the graham crackers.

Phase 10

Add Remaining Dough: Drop remaining cookie dough by spoonfuls over the top; gently spread with spatula to cover.

Phase 11

Add Toppings: Sprinkle with additional chocolate chips, mini marshmallows, and crushed graham cracker.

Phase 12

Bake: Transfer pan to oven and bake for 28 to 32 minutes or until golden brown but still slightly gooey at the center.

Phase 13

Cool and Serve: Allow bars to fully cool in pan before lifting out with parchment and cutting into portions.

Necessary tools

  • 9x13-inch baking pan
  • Parchment paper
  • Two mixing bowls
  • Electric mixer or whisk
  • Rubber spatula
  • Measuring cups and spoons

Allergy details

Review each component carefully for potential allergens and consult with healthcare professionals if you're uncertain about any ingredient.
  • Contains wheat (gluten), eggs, milk, and soy (present in chocolate).
  • May contain nuts if peanut butter cups are added or depending on chocolate brand.
  • Check all ingredient labels for cross-contamination risks.

Nutrient breakdown (per portion)

These values are estimates only and shouldn't replace professional medical guidance.
  • Energy: 370
  • Fats: 17 g
  • Carbohydrates: 52 g
  • Proteins: 3 g