Banana Texas Sheet Cake - In a medium saucepan, bring to boil water and butter. Once butter is melted, add brown sugar, stirring until combined. Add sour cream and mashed banana, stirring well to incorporate.
Once butter is melted, add brown sugar, stirring until combined. In a medium saucepan, bring to boil water and butter. Add sour cream and mashed banana, stirring well to incorporate.