Banana Walnut Cake with Caramel Frosting

INGREDIENTS

2 tbsp

unsalted butter, at room temperature

2/3 cup

sugar

1/2 cup

sour cream

large egg

ripe bananas, mashed (I ended up with about a cup after a thorough mashing)

1 tbsp

vanilla extract

1 cup

flour

1/4 tsp

salt

1/2 tsp

baking soda

1/2 cup

chopped walnuts (make this a heaping 1/2 cup, measured after chopping)

caramel frosting

5 tbsp

butter

2/3 cup

packed brown sugar

1/4 cup

heavy cream

1 tbsp

pure vanilla extract

8 oz

(about 1/2 a box) confectioner’s sugar

salt