Fluffy Raspberry Lime Cupcakes

INGREDIENTS

Lime Cupcakes

1 1/4 cups

all-purpose flour

1/4 cup

cornstarch

2 tsp

baking powder

1/2 tsp

salt

1/2 cup

butter, softened to room temperature

3/4 cup

granulated sugar

1 tsp

vanilla extract

1 tbsp

freshly grated lime zest

large egg

large egg whites (in addition to the 1 whole egg)

2 tbsp

lime juice (freshly squeezed)

1/3 cup

sour cream

1/4 cup

milk (whole, 2% or buttermilk preferred)

1 tbsp

lime juice (freshly squeezed)

Raspberry Frosting

1 1/2 cups

raspberries, fresh or frozen

1 cup

unsalted butter, softened to room temperature

4 cups

powdered sugar, sifted

1 tbsp

whipping cream, if needed