Dulce de Leche Banana Cupcakes with Chocolate Frosting

INGREDIENTS

For the banana cupcakes

1 cup

all-purpose flour

1/2 tsp

baking powder

1/2 tsp

baking soda

1/2 tsp

ground cinnamon

1/4 tsp

fine salt

1 stick

unsalted butter, at room temperature

1/3 cup

granulated sugar

1/4 cup

light brown sugar

1/4 cup

sour cream

1 tsp

vanilla extract

large eggs, at room temperature

large overripe bananas, mashed

About 1/4 cup prepared dulce de leche

For the chocolate cream cheese frosting

8 oz

cream cheese, at room temperature

4 tbsp

unsalted butter, at room temperature

3 cups

powdered sugar

1/2 cup

good-quality cocoa powder