2 1/4 cups all purpose flour
2 tsp baking powder
1/4 tsp salt
1 1/2 cups sugar
1/2 cup butter, room temperature
2 tsp vanilla extract
3 egg whites, room temperature
3/4 cup milk (skim is fine)
1 1/4 cups crushed oreo cookies (10-12 cookies) - I used reduced fat and it worked fine.
Preheat the oven to 350F. Line 24 muffin cups with baking cups.
Cool completely on a wire rack before frosting.
Quick Vanilla Buttercream Frosting
4 cups powdered sugar
1/4 cup milk
1 tsp vanilla extract
Combine all ingredients in a large bowl and beat, with an electric mixer, until frosting is creamy, 3-5 minutes.
Frost cupcakes with frosting using a butter knife or offset spatula. Add as much or as little frosting as desired. If making oreo cupcakes, garnish with additional chunks of Oreo.