Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 375°F (190°C) and line a 13x9-inch pan with parchment paper.
- Place full sheets of graham crackers in the bottom of the prepared pan.
- Cream room temperature unsalted butter, granulated sugar, and light brown sugar together until light and fluffy.
- Incorporate eggs one at a time and add the vanilla extract, mixing until well combined.
- Whisk together all-purpose flour, salt, and baking soda, then gradually mix into wet ingredients.
- Fold in the semi-sweet chocolate chips and mini marshmallows gently.
- Spread the cookie dough evenly over the graham cracker layer in the pan.
- Bake for 25-30 minutes until golden brown. A toothpick inserted should come out clean.
- Immediately break Hershey's chocolate bars over the warm cookie bars, allowing them to melt.
- Cool in the pan for 20-30 minutes, lift out, slice into squares, and serve.
Nutrition
Notes
Store in an airtight container at room temperature for up to 3 days; refrigerate for firmer bars.
