Death by Oreo Cupcakes - Cupcake Fanatic

Ingredients

• 2 packages Oreo cookies
• 3/4 cup milk
• 1/4 sour cream, room temperature
• 3 egg whites, room temperature
• 1 egg, room temperature
• 1 Tbsp vanilla extract
• 2 cups cake flour, sifted 3 times
• 2 1/2 tsp baking powder
• 1/2 tsp salt
• 1 1/8 sugar
• 5 Tbsp unsalted butter, soft & at room temperature
• 4 Tbsp vegetable shortening
• 1 cup (2 sticks) unsalted butter, room temp
• 2 lbs powdered sugar
• 1/2 cup heavy cream
• 1/8 tsp salt
• 1 sleeve of Oreo cookies
• 1 bag of Mini Oreo cookies – for garnish