Monkey Cream Cake

Ingredients

• 1 (18 1/4 ounce) package yellow cake mix
• 3 eggs
• 1 cup banana (ripe & 3)
• 14 cup safflower oil
• 8 ounces cream cheese (softened)
• 12 cup butter (softened)
• 4 cups powdered sugar
• 1 cup walnut pieces (finely chopped)
• 1 cup sour cream

Instructions

No instructions listed