For any party, these Funfetti Birthday Cake Oreo Cupcakes are a great treat. The bottom has a surprise Oreo cookie, and the top is made of vanilla frosting, sprinkles, and cream cheese. Ingredients: 1 box of white cake mix 1 cup of water 1/3 cup of vegetable oil 3 large eggs 1/2 cup of rainbow sprinkles funfetti 12 Oreo cookies 1 batch of vanilla frosting Additional rainbow sprinkles for decoration Instructions: Warm up the oven to 350F 175C and put paper liners in a cupcake pan Put the eggs, water, vegetable oil, and white cake mix in a large bowl Mix everything together well Add 1/2 cup of rainbow sprinkles funfetti to the cake batter and mix them in well In the bottom of each cupcake liner, put an Oreo cookie Cover the whole Oreo cookie with the funfetti cake batter in each liner After the oven is hot, bake the cupcakes for 18 to 20 minutes, or until a toothpi...