Monkey Squares (with browned butter frosting)

This is to die for!! A great way to use up those over-ripe bananas, and my little monkeys love them! I found this recipe on one of my favorite food blogs.

1 ½ cups sugar

1 cup sour cream
½ cup butter, softened
2 eggs
1 ¾ cups (3 or 4) ripe bananas, mashed (If I don't have enough ripe banana, I substitute the rest with applesauce)
2 teaspoons vanilla
2 cups flour

1 teaspoon baking soda

¾ teaspoon salt
½ cup chopped walnuts (optional)

Heat oven to 375 degrees. Grease and flour 10x15 jelly roll pan. Beat first four ingredients until creamy. Blend in bananas and vanilla one minute. Add dry ingredients and blend one minute. Stir in nuts and spread in pan. Bake 20 to 25 minutes until golden brown. Frost with Browned Butter Frosting immediately as the frosting is easier to spread on the warm cake. (recipe below).

Banana bread option: Instead of spreading into jelly roll pan, this recipe will make about two regular loaves of banana bread, or about four small loaves. Regular loaves bake about 45 minutes at 350 degrees. Small loaves will bake about 25 minutes on 350.

Browned Butter Frosting

½ cup butter
4 cups powdered sugar
1 ½ teaspoons vanilla
about 3 tablespoons milk or half and half

Heat butter in saucepan over medium heat past the melting point until it boiling, and a delicate brown. Remove from the heat and immediately add the remaining ingredients. This should be thicker than a glaze and thinner than frosting. Using a spatula smooth over the top of the Monkey Squares immediately. The frosting will be easier to spread once it's on the warm bread.