Peanut Butter and Jelly Cupcakes

INGREDIENTS

For the cupcakes:

1 3/4 cups

all-purpose flour

3/4 tsp

baking powder

1/4 tsp

baking soda

1/2 tsp

salt

12 tbsp

(1½ sticks) unsalted butter, at room temperature

1 1/3 cups

sugar

2/3 cup

creamy peanut butter

large eggs

1/2 cup

sour cream

(reduced fat is fine)

1 tsp

vanilla extract

1/4 cup

buttermilk

For the filling and topping:

Grape and/or strawberry jam

For the frosting:

2 sticks

unsalted butter, at room temperature

2/3 cup

creamy peanut butter

3 cups

confectioners’ sugar, sifted

coarse salt

1 1/2 tsp

vanilla extract

2 tbsp

heavy cream