These cupcakes combine the tangy flavor of key lime with the sweetness of a margarita-inspired treat.
Preheat your oven to 325°F (or as directed on the cake mix box).
Preheating ensures even baking from the start.
In a large mixing bowl, combine the vanilla cake mix, margarita mix, egg whites, and vegetable oil using an electric mixer until smooth.
Mix until there are no lumps for a smooth batter.
Stir in the lime zest until evenly distributed.
Adding zest enhances the citrus flavor.
Fill cupcake liners in the pan about two-thirds full with the batter.
Use an ice cream scoop for even portions.
Bake in the preheated oven for 22-24 minutes or until a toothpick inserted in the center comes out clean.
Avoid overbaking to keep the cupcakes moist.
Let the cupcakes cool in the pan for 5-8 minutes, then transfer to a cooling rack to cool completely.
Cooling completely prevents the frosting from melting.
For the icing, beat the butter, cream cheese, key lime juice, and zest in a large bowl until light and fluffy.
Ensure the butter and cream cheese are softened for easier mixing.
Gradually add the confectioners' sugar, one cup at a time, beating until the icing is smooth and fluffy.
Adjust the sugar quantity for desired consistency.
Frost the cooled cupcakes generously with the prepared icing.
Use a piping bag for a professional look.
Serve and enjoy your delicious Key Lime Margarita Cupcakes!
Garnish with a slice of lime or a sprinkle of zest for presentation.