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Delicious smores cookie bars with gooey marshmallows and chocolate

S'mores Cookie Bars

Delicious and gooey s'mores cookie bars combine a buttery cookie base, melty chocolate, and stretchy marshmallows, all crafted in one easy pan for a campfire vibe without the smoke.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 12 pieces
Course: Dessert, Snack
Cuisine: American
Calories: 250
Ingredients Method Notes

Ingredients
  

Crust Ingredients
  • 1 cup Graham crackers, crushed For the base layer
  • 1/2 cup Butter, melted To bind the crust
  • 1 tablespoon Granulated sugar In the crust
Cookie Layer Ingredients
  • 1/2 cup Butter, melted or softened
  • 1/2 cup Brown sugar For chewiness
  • 1/2 cup Granulated sugar
  • 2 large Eggs
  • 1 teaspoon Vanilla extract
  • 1 1/2 cups All-purpose flour
  • 1 teaspoon Baking powder
  • 1/4 teaspoon Salt
Filling Ingredients
  • 2 cups Chocolate bars or chocolate chips Milk chocolate is classic
  • 2 cups Marshmallows Mini marshmallows or big ones cut in half

Method
 

Preparation
  1. Preheat your oven to 350°F (175°C). Line a 9x13 inch pan with parchment paper for easy lifting.
  2. Crush graham crackers into fine crumbs and mix with melted butter and a spoonful of sugar. Press the mixture into the bottom of the prepared pan.
Making the Cookie Layer
  1. In a bowl, cream together melted or softened butter, brown sugar, and granulated sugar until glossy.
  2. Mix in the eggs and vanilla extract.
  3. Stir in the flour, baking powder, and salt until there are no dry ingredients left.
Assembly
  1. Spread about two-thirds of the cookie dough over the crust, then add the chocolate layer, followed by scattered marshmallows.
  2. Dollop the remaining cookie dough on top in little pieces. Don't worry about covering everything perfectly; gaps will create gooey spots.
Baking
  1. Bake for 25 to 30 minutes until the top looks golden and edges are set.
  2. If the marshmallows need more toasting, turn on the broiler for 30 to 60 seconds but watch closely.
  3. Allow to cool for at least 30 minutes before slicing.

Notes

For extra gooey bars, use big marshmallows cut in half, do not overbake, layer chocolate in chunks, and cool properly for neat slices. Variations include a no-bake version or Rice Krispie s'mores.