S'mOreo Cookie Bars Recipe

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Everyone loves a good s'more — they just bring back the best childhood memories! Turn those classic flavors into a great cookie bar with another childhood favorite: the Oreo. You'll have a big hit on your hands!

Image Credit: Jackie Dodd

Things You'll Need

  • 9 whole graham cracker sheets

  • 1 tablespoon brown sugar

  • 4 tablespoons, plus ½ cup butter, melted (divided)

  • 1 cup granulated sugar

  • 1 teaspoon vanilla extract

  • 2 large eggs

  • ¼ cups vegetable oil

  • 2/3 cups all purpose flour

  • ⅓ cups unsweetened cocoa powder

  • ½ teaspoons salt

  • ¼ teaspoons baking powder

  • 12 whole Oreo cookies chopped

  • 1 (10 oz) bag mini marshmallows

Image Credit: Jackie Dodd

Step 1: Crush the graham crackers

Preheat the oven to 350ºF. In a food processor, add the graham crackers and pulse until only fine crumbs remain.

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Image Credit: Jackie Dodd

Step 2: Add the butter and sugar

Add the brown sugar and 4 tablespoons melted butter, and process until combined. It will look like wet sand.

Image Credit: Jackie Dodd

Step 3: Press into the pan

In a greased and floured 9×13" baking pan, add the graham crackers to the bottom and press into the pan.

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Image Credit: Jackie Dodd

Step 4: Mix the eggs and sugar

In a large bowl, whisk together the eggs and sugar.

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Image Credit: Jackie Dodd

Step 5: Add the oil and butter

Add the oil and remaining 1/2 cup melted butter, then whisk until well combined.

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Image Credit: Jackie Dodd

Step 6: Add the dry ingredients

Add the flour, cocoa powder, salt and baking powder; whisk until well combined.

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Image Credit: Jackie Dodd

Step 7: Add the Oreos

Crush the Oreo cookies and stir into the batter.

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Image Credit: Jackie Dodd

Step 8: Add to the pan

Pour the batter over the crust in an even layer.

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Image Credit: Jackie Dodd

Step 9: Add the marshmallows

Sprinkle the marshmallows over the filling in an even layer.

Image Credit: Jackie Dodd

Step 10: Bake

Bake for 22-25 minutes or until the marshmallows are golden brown. Remove from oven and allow to cool to room temperature before cutting, and chill if necessary.

For an added campfire-ier taste, run a kitchen torch over the top.

Image Credit: Jackie Dodd

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