Mix dry ingredients together and set aside. In separate mixing bowl, combine sugar with melted butter. Mix in eggs until smooth. Stir in milk and vanilla and then combine with dry ingredients. Mix in sprinkles.
Preheat oven to 350 degrees.
Fill cupcake liners to ⅔ full and bake for 18-22 minutes or until an inserted toothpick comes out clean.
For Gluten-Free version- substitute gluten-free all purpose flour and ensure you are using gluten-free products for all other items. The flour was the only thing changed in this recipe when I made these same cupcakes gluten-free.
Mix cream cheese until smooth. Add in half of the powdered sugar and incorporate with cream cheese. Pour in 2 teaspoons of orange juice, and then add the remaining powdered sugar.
Double recipe if you want thicker frosting on your cupcakes or cake.