Check out this summer cc recipe from Cococonut and Lime. I am too hot to cook from scratch so I will deviate a little from this BettyCrocker keylime cupcakes here. Use Martha Stewart's vanilla cupcake batter with some buttermilk and keylime juice instead of the BC box kind and my quick keylime cream icing. It'll be richer, but isn't that a southern thing.
Quick Key Lime Icing
This recipe makes about 1 cup
2 cups confectioners’ sugar
1/4 cup of soft butter
3 or more teaspoons of Half & Half
Zest of 1 Key Lime
1 Tablespoon of Key Lime juice
Combine the confectioners’ sugar and the softened butter. Blend well.
Adding 1 teaspoon at a time, beat in 3 or more teaspoons of cream or Half & Half.
Add, Key lime zest and juice and fold into the icing.