Vanilla Bean Lime Cupcakes with Vanilla Bean Lime Buttercream Frosting

INGREDIENTS

3/4 cup

butter, softened

2 cups

granulated sugar

1/2 tsp

fine sea salt

Lime zest from 5 limes (about 4 tablespoons)

3 tbsp

freshly squeezed lime juice

vanilla bean

large eggs

3 cups

Cake Flour (see note below)

2 tsp

baking powder

1 cup

buttermilk

1 cup

butter, softened

4 1/2 cups

powdered sugar, sifted

1 1/2 tbsp

freshly squeezed lime juice

1 tbsp

milk

vanilla bean

fine sea salt

drops green food coloring

drops yellow food coloring