01 -
Set your oven to 350°F (175°C) and line a cupcake pan with paper liners.
02 -
In a large bowl, combine the vanilla cake mix, grape soda, vegetable oil, and eggs. Stir until the mixture is smooth and no lumps remain.
03 -
Spoon the batter into the cupcake liners, ensuring each is filled to about two-thirds capacity.
04 -
Place the pan in the preheated oven and bake for 18-20 minutes. Check for doneness by inserting a toothpick into the center—if it comes out clean, they're ready. Let them cool completely before frosting.
05 -
While the cupcakes cool, beat the softened butter with the grape jelly until fully blended. Gradually add the powdered sugar, mixing well with each addition. Add milk a little at a time to adjust the consistency as needed.
06 -
Once the cupcakes are thoroughly cooled, spread or pipe the frosting on top. Add grape candies for decoration if desired.
07 -
Your cupcakes are ready! Serve them as a sweet treat for any occasion.