1 c. butterscotch chips
1/4 c. brown sugar
1/4 c. butter
1 egg
3/4 c. flour
1 tsp. baking powder
1/4 tsp. salt
1 c. semi-sweet chocolate chips
1 c. miniature marshmallows
1/2 c. chopped walnuts
1 tsp. vanilla

In saucepan, melt butterscotch chips, brown sugar and butter over medium heat. Add egg; beat well. Add flour, baking powder and salt. Stir in remaining ingredients. Spread in greased 8" square pan. Bake at 350 degrees for 20 to 25 minutes. Cut into bars.