Girl Scout Cookie S’mores Bars

By
Kristina Vanni
Kristina Vanni
Kristina Vanni
An internationally recognized culinary authority, Kristina Vanni is well-known for her recipe development, food photography, and experience as a TV show host.
Learn about The Spruce Eats' Editorial Process
Updated on 12/13/22
Girl Scout Cookie S’mores Bars

The Spruce / Kristina Vanni & Eric Kleinberg
Prep: 15 mins
Cook: 33 mins
Total: 48 mins
Servings: 9 servings
Yield: 9 bars
Nutrition Facts (per serving)
405 Calories
19g Fat
55g Carbs
5g Protein
Show Full Nutrition Label Hide Full Nutrition Label
×
Nutrition Facts
Servings: 9
Amount per serving
Calories 405
% Daily Value*
Total Fat 19g 25%
Saturated Fat 10g 48%
Cholesterol 50mg 17%
Sodium 116mg 5%
Total Carbohydrate 55g 20%
Dietary Fiber 2g 7%
Total Sugars 36g
Protein 5g
Vitamin C 0mg 0%
Calcium 60mg 5%
Iron 4mg 21%
Potassium 133mg 3%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

Girl Scout cookie season is one of the most delicious times of the year. When buying Girl Scout cookies, you are not only supporting a great organization, but you get to enjoy the iconic treats. One of the most popular Girl Scout cookie offerings is the S'mores cookie—crunchy graham sandwich cookies with creamy chocolate and marshmallow filling.

This recipe for Girl Scout Cookies s'mores bars is twice the s'mores goodness in every bite. The recipe starts with a homemade brownie batter as the base. After the brownies are baked they are topped with graham cracker crumbs and the Girl Scout S'mores cookies are pressed into the warm baked brownies. Next, the brownies are topped with pieces of chocolate bars and sprinkled with mini marshmallows. The marshmallows can be toasted with a kitchen torch (with parental supervision, of course) or baked in the oven a few minutes until golden brown. If you love s'mores, this recipe is twice the fun!

Ingredients

  • 4 ounces (1/2 cup) unsalted butter

  • 1/2 cup unsweetened cocoa powder

  • 1 cup light brown sugar, packed

  • 1/2 cup all-purpose flour

  • 1/2 cup milk

  • 1 large egg, lightly beaten

  • 1 teaspoon pure vanilla extract

  • 2 tablespoons graham cracker crumbs

  • 9 Girl Scout S’mores Cookies

  • 1 (1.55-ounce) chocolate bar

  • 1 cup mini marshmallows

Steps to Make It

  1. Gather the ingredients. Preheat oven to 350 degrees. Line an 8-inch square pan with non-stick foil and set aside.

    Girl Scout Cookie S’mores Bars ingredients

    The Spruce / Kristina Vanni & Eric Kleinberg

  2. In a medium saucepan, place the butter and unsweetened cocoa powder. Heat over low, stirring constantly, until butter has melted and the mixture is smooth.

    Butter and cocoa powder in a pot

    The Spruce / Kristina Vanni & Eric Kleinberg

  3. Remove from the heat and stir in the brown sugar, flour, milk, egg, and vanilla extract until combined.

    Girl Scout Cookie S’mores Bars ingredients in a pot

    The Spruce / Kristina Vanni & Eric Kleinberg

  4. Spread the mixture evenly into the prepared pan. Bake until a toothpick inserted in center comes out clean, 25 to 30 minutes.

    Base for Girl Scout Cookie S’mores Bars in a pan ready to bake

    The Spruce / Kristina Vanni & Eric Kleinberg

  5. Remove the pan from oven. Sprinkle the top evenly with the graham cracker crumbs. Break the chocolate bar into pieces and cut the Girl Scout S’mores cookies in half. Press both lightly into the warm brownies.

    Brownies decorated with graham cracker crumbs and s'mores cookies

    The Spruce / Kristina Vanni & Eric Kleinberg

  6. Distribute the chocolate bar pieces over the brownies and sprinkle with the mini marshmallows.

    Girl Scout Cookie S’mores Bars ready for toasting

    The Spruce / Kristina Vanni & Eric Kleinberg

  7. Use a kitchen torch to lightly toast the marshmallows. Alternately, the pan can be returned to the oven and baked until the marshmallows puff and lightly brown, about 3 minutes. Cool until the topping hardens before slicing and serving.

    Girl Scout Cookie S’mores Bars with torch

    The Spruce / Kristina Vanni & Eric Kleinberg

Tip

By lining a pan with non-stick foil, you are creating easy "handles" to pick up the baked and cooled bars and lift them from the pan. The bars can then be transferred to a cutting board for neat, even slicing. If you don't have any non-stick foil, parchment paper also works well. Of course, you can always grease the pan with butter or baking spray and cut the bars directly from the baking pan as well.