Edited to add-I just typed out this whole blog post and realized I never got a picture of these yummy bars! Ugh! Well, check out Amanda's site to see her pics. They are amazing!
1 cup (2 sticks) butter, softened
1 cup granulated sugar
3/4 cup light brown sugar
2 large eggs
1 Tablespoon pure vanilla extract
2 1/2 cups all-purpose flour
1 teaspoon baking soda
1 teaspoon salt
2 cups (12 ounces) milk chocolate chips(I used semi-sweet)
1 pkg Double Stuffed Oreos(I used regular Oreos)
1 Family Size (9×13) Brownie mix
1/4 cup hot fudge topping(I didn't add this, but it would be awesome!)
Preheat oven to 350 degrees F. Cream the butter and both sugars in a large bowl with an electric mixer on medium speed for 3-5 minutes. Add the eggs and vanilla and mix well to thoroughly combine. In a separate bowl, whisk together the flour, baking soda and salt, then slowly incorporate into the mixer until the flour is just combined. Stir in chocolate chips. Spread the cookie dough in the bottom of a 9×13 baking dish that’s been lined with wax paper and sprayed with cooking spray. Top with a layer of Oreos. Mix together brownie mix, adding an optional 1/4 cup of hot fudge topping to the mix. Pour the brownie batter over the cookie dough and Oreos. Bake at 350 degrees F for 45-55 minutes.