There’s something uniquely nostalgic about the gooey, chocolatey, marshmallow-laden perfection of a s’more. It instantly conjures images of crackling campfires, laughter-filled evenings, and sticky fingers. But what if you could capture that beloved campfire treat and transform it into something even more indulgent? Enter S’mores Cookie Bars, a layered dessert that elevates the classic trio of graham crackers, marshmallows, and chocolate into a gourmet experience.
1. Graham Crackers
2. Unsalted Butter
3. Sugars
4. Eggs
5. Vanilla Extract
6. Dry Ingredients
7. Add-Ins
8. Hershey’s Milk Chocolate Bars
Step 1: Preheat and Prepare Your Pan
Preheat your oven to 375°F (190°C). Line a 9×13-inch pan with parchment paper, ensuring the edges hang over the sides for easy removal. This step not only prevents sticking but also makes lifting the finished bars out of the pan a breeze.
Step 2: Lay the Graham Cracker Base
Arrange the graham crackers in a single layer across the bottom of the pan. Break them into smaller sections if needed to ensure full coverage. This layer will provide the signature crunch reminiscent of classic s’mores.
Step 3: Prepare the Cookie Dough
In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy. This step is crucial for incorporating air, which helps the dough achieve a tender texture.
Add the eggs one at a time, mixing thoroughly after each addition. Stir in the vanilla extract, which enhances the overall flavor.
In a separate bowl, whisk together the flour, salt, and baking soda. Gradually add the dry ingredients to the wet mixture, mixing until just combined. Finally, fold in the chocolate chips and mini marshmallows for bursts of gooey, melty goodness throughout the dough.
Step 4: Assemble the Layers
Spread the cookie dough evenly over the graham cracker base. Use your hands or a spatula to press the dough down gently, ensuring it reaches all corners of the pan. If desired, sprinkle a few extra mini marshmallows on top for added visual appeal and gooey texture.
Step 5: Bake to Perfection
Bake the assembled bars in the preheated oven for 25–30 minutes, or until the top is golden brown and a toothpick inserted into the center comes out clean. If the edges brown too quickly, cover the pan with foil to prevent overbaking.
Step 6: Add the Chocolate Bar Topping
While the cookie bars are still warm from the oven, place the Hershey’s chocolate squares on top. The heat will slightly melt the chocolate, allowing it to adhere to the cookie layer.
Step 7: Cool and Slice
Allow the bars to cool in the pan for 20–30 minutes. Then, use the parchment overhang to lift them out of the pan and onto a cutting board. Slice into squares or rectangles using a sharp knife. For clean edges, wipe the blade with a damp cloth between cuts.