1 c. flour
1/2 c. soft butter
1/4 c. powdered sugar

Pat into a greased 9 x 12 inch pan. Bake at 350 degrees for 8-10 minutes.

FILLING:

Mix 14 graham crackers, crushed
1/4 tsp. salt
1 tsp. baking powder
1/2 c. chocolate chips
1/2 c. chopped walnuts
1 can sweetened condensed milk

Pour over baked crust and bake at 350 degrees for 15-18 minutes. Cool and spread frosting over bars.

FROSTING:

Mix 1/2 c. soft butter
1 1/2 c. powdered sugar
1 tsp. vanilla