Key Lime Cupcakes
Key lime cupcakes made with white cake mix and lime juice, topped with creamy lime buttercream frosting.
Ingredients
Make the Cupcakes
- 1 box White Cake Mix + box ingredients
- 1/2 cup Lime Juice
Make the Frosting
- 1 cup Butter 226 g, softened
- 6 cups Powdered Sugar 680 g
- 6 tbsp Lime Juice
- 2 tsp Lime Zest
- 1 drop Green Food Coloring
Instructions
Make the Cupcakes
Preheat oven:
Heat the oven as directed on the white cake mix box.Mix cake batter:
Mix the cake batter per box instructions, substituting 1/2 cup of the water with 1/2 cup lime juice.Line muffin cups:
Place liners into 24 muffin cups.Fill cupcake liners:
Pour batter into each liner until about half full.Bake cupcakes:
Bake for 16–18 minutes, until a toothpick inserted in the center comes out clean.Cool cupcakes:
Take cupcakes out of the pan and let cool fully on a wire rack before applying frosting.
Make the Frosting
Cream butter:
In a large bowl, cream 1 cup softened butter until smooth.Add lime juice and coloring:
Add 6 tbsp lime juice and 1 drop green food coloring; mix until combined.Add powdered sugar:
Gradually add 6 cups powdered sugar, 1 cup at a time, beating thoroughly after each addition until fully blended.Add lime zest and whip:
Stir in 2 tsp lime zest and whip until evenly incorporated and the frosting is light and fluffy.Frost cupcakes:
Pipe or spread the frosting onto the cooled cupcakes using a piping bag or knife.Serve or store:
Serve right away or keep in an airtight container.