01 -
Preheat the oven to 350°F. Line a 9x9 inch pan with parchment paper.
02 -
In a stand mixer, combine the Brownie mix, eggs, oil, and milk. Mix on medium speed with the whisk attachment until smooth.
03 -
Pour the Brownie batter into the prepared pan.
04 -
Place Oreo cookies on top of the Brownie batter, covering the surface.
05 -
Bake in the preheated oven for 25-30 minutes, or until a toothpick comes out clean from the center.
06 -
Allow the brownies to cool completely.
07 -
While cooling, prepare the frosting by mixing the orange filling of about 10 Oreos into the White or Vanilla frosting, along with 1 teaspoon of Orange food coloring gel. Mix until fully combined and adjust color as needed.
08 -
Once the brownies are cooled, spread the Orange frosting over the brownies and refrigerate for 30 minutes.
09 -
Remove from the refrigerator and frost the top with the Milk chocolate frosting. Crumble the remaining Oreos on top.
10 -
Cut into 3x2-inch squares and serve immediately.