Cream together the butter or margarine with 1/2 cup of the brown sugar. Stir in the vanilla and the flour. Press this mixture into the bottom of one ungreased 8x8 inch square baking pan.
Bake at 350 degrees F (175 degrees C) for 10 minutes.
To Make Topping: Beat the eggs and add 1 cup of the brown sugar. Stir in the 1 tablespoon all purpose flour, the baking powder, pinch salt, chopped walnuts, glace; cherries, coconut and chocolate chips. Spread mixture over the baked pastry.
Return to the oven and bake at 350 degrees F (175 degrees C) for an additional 30 to 35 minutes or until golden brown. Let cool then cut into squares.