Disappearing Brownies - cooking recipe

Ingredients

1 (6 oz.) pkg. butterscotch morsels
1/2 c. margarine
1 1/2 c. flour
2/3 c. brown sugar
2 tsp. baking powder
1/2 tsp. salt
1 tsp. vanilla
2 eggs, beaten
2 c. miniature marshmallows
1 (12 oz.) pkg. chocolate chips (semi-sweet)
1/2 c. chopped nuts (optional)

Preparation

Melt butterscotch morsels and margarine over low heat and allow to cool.
Mix next 6 ingredients well, adding butterscotch mixture. Fold in marshmallows, chocolate chips and nuts.
Pour into greased 9 x 12 x 2-inch pan.
Bake at 350\u00b0 for 20 to 25 minutes.
Do not overbake.
Center will be \"jiggly\" but will harden as it cools.