Ingredients
-
1 (18 1/4 ounce) box white cake mix (no pudding in the mix)
-
1 (10 ounce) can frozen margarita mix, thawed (undiluted)
-
3 egg whites
-
2 tablespoons vegetable oil
-
1 tablespoon grated lime zest
-
-
8 tablespoons unsalted butter, softened
-
1 (8 ounce) package cream cheese, softened
-
2 tablespoons key lime juice
-
1 teaspoon key lime zest or 1 teaspoon lemon zest
Instructions
- In large bowl, combine cake mix, Margarita mix, egg whites and vegetable oil using electric mixer.
- Stir in lime zest; mix completely.
- Fill prepared pans 2/3 full.
- Bake according to box directions (usually 325 degrees - be sure to check box!) 22-24 minutes or until toothpick inserted in center of cupcake comes out clean.
- Cool in pan on cooling rack 5-8 minutes.
- Remove cupcakes from pan; cool completely.
- FOR ICING:
- In large bowl, cream butter, cream cheese, juice and zest with electric mixer until light and fluffy.
- Add 4 cups confectioners' sugar, one cup at a time; continue beating until light and fluffy.
- If icing is too thin add additional confectioners' sugar 1 tablespoon at a time.