Gooey Chocolate Marshmallow Cookie Bars
Have you ever dreamed of a dessert that combines the rich flavor of chocolate, the nostalgic taste of graham crackers, and the irresistible gooeyness of marshmallow? These Gooey Chocolate Marshmallow Cookie Bars deliver exactly that—perfectly balanced sweetness, a soft yet chewy texture, and a treat that will disappear quickly from your dessert table.
Ingredients
- 1/2 cup unsalted butter, softened to room temperature 8 Tbsp; 113g
- 3/4 cup packed light or dark brown sugar 150g
- 1 large egg, at room temperature
- 1 teaspoon pure vanilla extract
- 1 cup all-purpose flour spooned & leveled; 125g
- 1 cup graham cracker crumbs about 8 full-sheet graham crackers; 120g
- 1/2 teaspoon baking powder
- 1/4 teaspoon salt
- 1 cup semi-sweet chocolate chips 180g
- 1 cup marshmallow creme heaping; store-bought "Fluff" or homemade marshmallow creme
Instructions
- Preheat your oven to 350°F (177°C). Line an 8-inch or 9-inch square baking pan with parchment paper, leaving an overhang for easy removal later.
- In a large bowl, cream the softened butter and brown sugar together using a mixer on medium-high speed for about 3 minutes. The mixture should be light and fluffy.
- Add the egg and vanilla extract, beating until fully combined. Don’t worry if the mixture looks slightly curdled—this is normal.
- Whisk the flour, graham cracker crumbs, baking powder, and salt in a separate bowl. Gradually add this dry mixture to the wet ingredients, mixing just until combined.
- Press two-thirds of the dough into the prepared pan, creating a thin, even layer. For sticky dough, slightly wetting your fingers can help.
- Gently spread the marshmallow creme over the dough. This step requires patience—if the marshmallow creme sticks to your spatula, lightly greasing it can help.
- Evenly sprinkle chocolate chips over the marshmallow layer.
- Break the remaining dough into flat pieces and layer them over the chocolate chips, leaving some gaps for the filling to peek through.
- Bake for 25-30 minutes, or until the top is lightly golden brown.
- Cool completely before lifting from the pan using the parchment paper. Cut into squares and enjoy!
Notes
These cookie bars are delicious on their own, but here are a few serving ideas:
- Warm slightly and top with vanilla ice cream for an indulgent dessert.
- Pair with a glass of cold milk or a cup of coffee for the ultimate snack.
- Serve as part of a dessert platter alongside brownies and fresh fruit.
- Warm slightly and top with vanilla ice cream for an indulgent dessert.
- Pair with a glass of cold milk or a cup of coffee for the ultimate snack.
- Serve as part of a dessert platter alongside brownies and fresh fruit.