I made these for Stephanie's 19th birthday party. They are a nice variation on plain white cupcakes and they have just a hint of strawberry flavor. I found this recipes on the Betty Crocker website.
1 box white cake mix
1 1/4 cups strawberry flavored soda
vegetable oil and egg whites as called for on the the cake mix box
frosting of your choice, I think a white frosting looks best with the pink cupcakes
Preheat oven to 350. Line muffin tin with cupcake liners. Make and bake cake mix as directed on box for 24 cupcakes, substituting the strawberry soda for water, and using oil and egg whites. Cool in pan 10 minutes, and then remove and let cool. Once completely cook, frost cupcakes.