1 box White Cake Mix +box ingredients
1/2 cup Lime Juice
1 cup Butter
6 cup Powdered Sugar
6 tbsp Lime Juice
2 tsp Lime Zest
1 drop Green Food Colouring
Make batter according to box EXCEPT replace 1/2 cup of water with 1/2 cup lime juice.
Fill liners about 1/2 full.
Bake 16-18 minutes or until toothpick inserted in middle comes out clean.
Allow to cool completely on wire rack.
Cream butter in a large bowl.
Add lime juice and food colouring.
Add powdered sugar 1 cup at a time and beat until incorporated.
Add lime zest and whip until distributed.
Transfer to piping bag to frost cupcakes.