Disappearing Marshmallow Brownies - cooking recipe

Ingredients

1/2 c. (half 6 oz.\tpkg.) butterscotch pieces
1/4 c. butter or margarine
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

Preparation

Grease\tbottom and sides of a 9-inch square baking pan. Melt butterscotch pieces and butter in a 3-quart heavy saucepan\tover medium heat, stirring constantly.
Remove from heat; cool
to lukewarm.
Add
flour,
brown
sugar, baking powder, salt, vanilla and egg to the butterscotch mixture;
mix well. Fold marshmallows,
semi-sweet chocolate pieces and nuts into butterscotch
batter
just\tuntil
combined,
about 5 strokes. Spread
in\tprepared
pan.\tBake at 350\u00b0 for 20 to 25 minutes. Do not overbake.
Center will be jiggly but becomes firm upon cooling.
Makes 12 to 18 bars.