1/2 c. (half 6 oz.) butterscotch pieces
1/4 c. butter
3/4 c. flour
1/3 c. firmly packed brown sugar
1 tsp. baking powder
1/4 tsp. salt
1/2 tsp. vanilla
1 egg
1 c. miniature marshmallows
1 c. (6 oz.) pkg. semi-sweet chocolate pieces
1/4 c. chopped nuts

Grease bottom and sides of 9 inch square baking pan. Melt butterscotch pieces and butter in 3 quart saucepan over medium heat, stirring constantly. Remove from heat; cool to lukewarm. Add the next 6 ingredients to butterscotch mixture in saucepan. Mix well.

Fold into butterscotch batter the marshmallows, chocolate pieces and chopped nuts just until combined. Spread in prepared pan. Bake at 350 degrees for 20- 25 minutes. Do not overbake. Center will be jiggly, but will become firm when cool.