BANANA BREAD CAKE

1 1/2 c sugar 1 c sour cream
2 eggs
1/2 c butter, softened
1 3/4 c mashed ripe bananas (3-4 bananas)
2 tsp vanilla extract
2 c all purpose flour
1 tsp baking soda
3/4 tsp salt
1/2 c chopped walnuts (optional)

FROSTING
1/2 c butter
4 c powdered sugar
1 1/2 tsp vanilla extract
3 Tbsp milk

Directions
1. Heat oven to 350. Grease and flour 9x12 inch cake pan. For the bars, in a large bowl, beat together sugar, sour cream, butter, and eggs until creamy. Blend in bananas and vanilla extract. Add flour, baking soda, salt, and blend for 1 minute. Stir in walnuts.
2. Spread batter evenly into pan. Bake 30 to 40 minutes or until golden brown.
3. Meanwhile, for frosting, heat butter in a large saucepan over medium heat until boiling. Let the butter turn a delicate brown and remove from heat immediately.
4. Add powdered sugar, vanilla extract and milk. Whisk together until smooth (it should be thicker than a glaze but thinner than frosting). Using a spatula, spread the brown butter frosting over the warm bars (the frosting will be easier to spread while the bars are still warm).