Double Decker Brownies
["1 3/4 c. flour", "1 tsp. salt", "1/4 tsp. soda", "3/4 c. shortening", "1 c. sugar", "2 eggs", "1/3 c. milk", "1 tsp. vanilla", "1 sq. melted chocolate", "3/4 c. chopped walnuts", "1 (6 oz.) pkg. semi-sweet chocolate bits", "graham crackers"]
["Blend shortening and sugar.", "Cream well.", "Add eggs and beat. Add alternately with dry ingredients to sugar mixture.", "Place 1/3 of batter in small bowl.", "Add chocolate and nuts.", "Spread in greased 9 x 13-inch pan.", "Arrange graham crackers over batter in pan.", "Add chocolate bits to remaining batter.", "Drop by spoonfuls over crackers and spread to cover.", "Bake 20 to 25 minutes at 375\u00b0. Cut into squares or bars while warm."]
["flour", "salt", "soda", "shortening", "sugar", "eggs", "milk", "vanilla", "chocolate", "walnuts", "semi-sweet chocolate bits", "graham crackers"]