“Velvet Elvis” Cupcakes with Moist Banana Cake and Rich, Peanut Butter-Cream Cheese Frosting, sprinkled with Sweet Buttered-Toffee Peanuts

INGREDIENTS

Bananas, very ripe

Eggs

3/8 cup

Peanut butter, creamy

2 cups

All-purpose flour

2 tsp

Baking soda

3/4 cup

Brown sugar

1/2 cup

Granulated sugar

Peanut butter-cream cheese frosting

4 1/2 cups

Powdered sugar

1/2 tsp

Salt

1 tbsp

Vanilla extract, pure

1/2 cup

Vegetable oil

1/2 cup

Butter, unsalted

8 oz

Cream cheese

1/2 cup

Sour cream

1/4 cup

Buttered-toffee