1. Preheat oven to 350 degrees and line pans with 24 cupcake liners.

2. Sift cake mix in to a small bowl and set aside.

3. Combine eggs, oil, buttermilk, sour cream and vanilla extract until smooth.

4. add malted milk powder to cake mix and stir.

5. Combine dry and wet ingredients and mix.

6. Fill cupcake liners 3/4 full and bake for 16-22 minutes, or until a knife comes out clean.

7. Buttercream: Beat butter and cream cheese for 4 minutes and scrape down the bowl as needed. Add cocoa powder, powdered sugar, vanilla extract and malted mix powder. Beat until smooth. If too thick, add a tablespoon of milk. If too thin, add more powdered sugar.

8. Pipe onto cooled cupcakes and decorate with chocolate malt balls and colorful straws.