Nutella Swirled Banana Cupcakes with Peanut Butter Frosting

INGREDIENTS

For the Cupcakes:

1/2 cup

butter, at room temperature

1 1/2 cups

sugar

eggs, at room temperature

1 cup

mashed ripe bananas (about 2 medium)

1 tsp

vanilla extract

2 cups

all-purpose flour

3/4 tsp

baking soda

1/2 tsp

baking powder

1/2 tsp

salt

1/2 cup

buttermilk, at room temperature

1/2 cup

Nutella

For the Frosting:

1 cup

butter, softened

3/4 cup

creamy peanut butter

3 cups

powdered sugar, sifted

2 tsp

vanilla

2 tbsp

milk