Preparation Steps

• Preheat oven to 350°F (175°C). Line a muffin tin with cupcake liners.
• In a large bowl, combine the cake mix, grape soda, oil, and eggs. Mix until just combined, being careful not to overmix.
• Fill each cupcake liner about 2/3 full.
• Bake for 18-20 minutes, or until a toothpick inserted into the center comes out clean.
• Let the cupcakes cool in the tin for a few minutes before transferring them to a wire rack to cool completely.
• While the cupcakes are cooling, prepare the frosting. In a large bowl, beat the butter until light and fluffy. Gradually add the powdered sugar, alternating with the grape soda, until smooth.
• Stir in the vanilla extract. Frost the cooled cupcakes and decorate as desired.