banana nut cake

Ingredients

• 1/2 cup margarine, softened
• 1-1/2 cup light brown sugar
• 2 large eggs
• 1-1/2 teaspoon vanilla flavoring (recipe don't call for it, but i add it)
• 2 cups all-purpose flour
• 1/2 teaspoon salt
• 1/2 teaspoon soda
• 1/4 cup buttermilk
• 1 cup mashed bananas
• 1 cup chopped nuts
• ICING
• 1 stick margarine
• 1 cup light brown sugar
• 2/3 cup evaporated milk
• 1-1/2 teaspoon vanilla flavoring (recipe don't call for it, but i add it)