Banana Bread Bars with Brown Butter Frosting

From the-girl-who-ate-everything.com

Ingredients:

Banana Bread Bars:

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

Brown Butter Frosting:

• 1/2 c. butter
• 4 c. powdered sugar
• 1-1/2 tsp. vanilla extract
• 3-5 tbsp. milk

Directions:

1.  Heat oven to 375F.  Grease and flour 15x10-inch jelly roll 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 20 to 25 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.