1/4 c. flour
1/4 tsp. baking powder
1/8 tsp. salt
1/3 c. brown sugar
1 (6 oz.) pkg. semi sweet chips
1 egg
1 tbsp. soft butter
1/2 tsp. vanilla
1 c. walnuts
1 c. small marshmallows

Mix flour, baking powder and salt. Add sugar, egg, butter and vanilla. Beat until smooth. Stir in 1/2 cup walnuts. Turn into greased 9 inch square pan. Bake at 350 degrees for 15 minutes until top is slightly brown and springs back when touched lightly. Remove from oven immediately. Arrange marshmallows, remaining walnuts and chocolate chips over top. Return to oven for 2 minutes or until chocolate has softened. Remove from oven. Swirl chocolate over marshmallows and walnuts. Cool until set. Cut into 15 even bars.