### S’mores Cookie Bars Recipe

**Description:**
Indulge in these delightful S’mores Cookie Bars that combine the rich flavors of chocolate, marshmallows, and graham crackers into a chewy, gooey treat. Perfect for sharing or enjoying as a sweet snack, these bars are sure to satisfy your cravings!

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**Ingredients:**
– 1 cup unsalted butter, softened
– 1 cup granulated sugar
– 1 cup brown sugar, packed
– 2 large eggs
– 2 teaspoons vanilla extract
– 3 cups all-purpose flour
– 1 teaspoon baking soda
– 1/2 teaspoon salt
– 1 cup semi-sweet chocolate chips
– 1 cup mini marshmallows
– 1 cup graham cracker crumbs
– 1/2 cup chocolate bars, broken into pieces (for topping)

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**Instructions:**

*Preparing the Batter:*
1. Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan or line it with parchment paper for easy removal later.
2. In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until the mixture is light and fluffy (about 3-4 minutes using an electric mixer on medium speed).
3. Add the eggs, one at a time, mixing well after each addition. Stir in the vanilla extract until well combined.
4. In a separate bowl, whisk together the all-purpose flour, baking soda, and salt. Gradually add this dry mixture to the wet ingredients, mixing on low speed until just combined. Avoid overmixing to keep the cookie bars soft and chewy.
5. Fold in the chocolate chips, mini marshmallows, and graham cracker crumbs using a spatula. The batter will be thick and sticky.

*Cooking Process:*
6. Spread the batter evenly into the prepared baking pan, smoothing the top with a spatula.
7. Bake in the preheated oven for 25-30 minutes, or until the edges are golden brown and a toothpick inserted in the center comes out with a few moist crumbs.
8. In the last 5 minutes of baking, remove the pan and sprinkle the broken chocolate bar pieces evenly over the top. Return to the oven and bake for an additional 5 minutes, or until the chocolate is melted and bubbly.

*Assembling the S’mores Cookie Bars:*
9. Remove the cookie bars from the oven and let them cool in the pan for about 10-15 minutes.
10. Cut into squares or rectangles, about 2 inches in size.
11. For an extra touch, toast additional mini marshmallows on top using a kitchen torch or under the broiler for a few seconds.
12. Serve warm or at room temperature.

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**Storage Tips:**
– Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for up to a week. Let them come to room temperature before serving.
– For longer storage, wrap tightly in plastic wrap and freeze in a freezer-safe bag for up to 3 months. Thaw in the fridge overnight or at room temperature.

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**Variations and Tips:**
– For a twist, consider adding peanut butter chips or other mix-ins to customize your S’mores Cookie Bars.

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**Prep Time:** 15 minutes
**Cook Time:** 30 minutes
**Total Time:** 45 minutes
**Yield:** 24 cookie bars

Enjoy your delicious S’mores Cookie Bars!