Easy Banana Cake Recipe with Mascarpone Frosting

INGREDIENTS

1 stick

unsalted butter (room temperature (115g))

1 cup

granulated sugar ((200g))

large eggs (room temperature)

1 1/2 cups

mashed ripe bananas (3 medium ones)

1 cup

buttermilk (or 1 cup milk + 1 tbsp lemon juice (240ml))

1 tsp

vanilla extract

2 cups

all-purpose flour ((250g))

1 tsp

baking soda

1/4 tsp

salt

3/4 stick

unsalted butter (room temperature (90g))

1 1/2 cups

confectioners' sugar (sifted (160g))

1 tsp

vanilla extract

4 oz

cold mascarpone ((113g))