Key Lime Coconut Cupcakes With White Chocolate Frosting Recipe

Ingredients

3/4 cup (1 1/2 sticks) unsalted butter, at room temperature

1 cup granulated sugar

2 eggs, at room temperature

1 teaspoon pure vanilla extract

1 heaping teaspoon grated key lime zest

1 1/2 tablespoons key lime juice (bottled or freshly squeezed)

1 1/2 cups all-purpose flour

1/2 teaspoon baking powder

1/4 teaspoon baking soda

1/4 teaspoon kosher salt

1/2 cup buttermilk

1 1/3 cups loosely packed sweetened coconut flakes (3.5 ounces)

For the Frosting:

5 ounces good quality white chocolate, chopped into small chucks

1/2 cup (1 stick) unsalted butter, room temperature

3 1/2 cups powdered sugar, sifted

Pinch salt

1/2 teaspoon pure vanilla extract

1 tablespoon key lime juice (bottled or freshly squeezed)

1/4 cup sour cream

Finely grated key lime zest, for garnish