Belongs to mlynmac Trilevel Brownies 

This moist brownie with two layers of chocolate over a chewy base of rolled oats, butter, and brown sugar, was selected as one of the all-time greatest recipes from Better Homes and Gardens ’ long and illustrious history.

You might need to buy:
  • * 1/2 cup all-purpose flour
  • * 1 cup quick-cooking rolled oats
  • * 1/2 cup packed brown sugar
  • * 1/4 teaspoon baking soda
  • * 1 egg
  • * 3/4 cup granulated sugar
  • * 2/3 cup all-purpose flour
  • * 1/4 cup milk
  • * 1 teaspoon vanilla
  • * 1/4 teaspoon baking powder
  • * 1/2 cup chopped walnuts
  • * 1 ounce unsweetened chocolate
  • * 2 tablespoons butter
  • * 1-1/2 cups sifted powdered sugar
  • * 1/2 teaspoon vanilla