Banana Cake with Cream Cheese Icing

Ingredients

• -cups all-purpose flour
  2 unit
• -tsp baking powder
  1 1/2 unit
• -tsp baking soda
  1 unit
• -tsp salt
  1/2 unit
• -cups granulated sugar
  1 1/2 unit
• -cup margarine
  1/2 unit
• -cup buttermilk or sour milk
  1/4 unit
• -cup mashed ripe bananas (3-4 bananas)
  1 unit
• -eggs
  2 unit
• -tsp vanilla
  1 unit
• -cup buttermilk or sour milk
  1/4 unit
• -package (250g each) cream cheese
  1 unit
• -cup margarine
  1/4 unit
• icing sugar

  sifted
  1 1/2 cups