Preheat oven to 350°F. Line 4-6” pans with parchment paper and spray with nonstick spray. In a stand mixer with paddle attachment, cream butter and sugar on medium speed.
¾ c unsalted butter, 2 ½ c granulated sugar
Add eggs, one at a time while continuing to beat. Add vanilla extract. Mix until smooth.
3 eggs, 3 tsp vanilla extract
Add vegetable oil, vinegar, and buttermilk. Mix until smooth.
1 c vegetable oil, 1 tbsp white vinegar, 1 ½ c buttermilk
Sift together dry ingredients.
4 ½ C cake flour, 1 ½ tsp baking soda, ½ tsp salt, 3 tbsp unsweetened cocoa powder
Slowly add dry ingredients to the mixer and beat until combined. Do not over beat.
Add in red food coloring until you reach your desired shade of red. Fold in chopped Oreos. 1 tbsp red food coloring*, 1 ½ c chopped oreos
Divide batter between pans and bake for 35-40 minutes or until toothpick comes out clean. Allow to cool before removing.