1/2 c. butterscotch chips
1/4 c. butter
3/4 c. flour
1/3 c. firmly packed brown sugar
1 tsp. salt
1/2 tsp. vanilla
1 egg
1 c. miniature marshmallows
1 c. semi-sweet chocolate chips

Melt butter and butterscotch chips together in top of double boiler (or 1 minute on high in microwave). Mix all ingredients together (very stiff). Pour in greased 8 x 8 x 2 inch pan and spread around evenly. Bake at 350 degrees for 20-25 minutes. Center will be jiggly but firms upon cooling.