01 -
Preheat oven to 350°F and line a 9x9-inch baking pan with parchment paper.
02 -
In a large bowl, combine brownie mix, eggs, vegetable oil, and milk. Mix thoroughly until smooth using a whisk or stand mixer.
03 -
Pour batter into prepared pan and spread evenly. Press Oreo cookies with orange filling gently into the surface to cover.
04 -
Bake for 25-30 minutes, or until a toothpick inserted in the center comes out clean. Remove from oven and let cool completely before frosting.
05 -
Mix white or vanilla frosting with the orange centers of about 10 Oreo cookies and orange food coloring gel until vibrant and smooth.
06 -
Spread orange frosting evenly over cooled brownies. Refrigerate for 30 minutes to allow frosting to set.
07 -
Spread milk chocolate frosting over set orange frosting. Top with crumbled remaining Oreos for garnish.
08 -
Cut into 3x2-inch squares and serve chilled or at room temperature for softer texture.