Franke's Crispy Ice-Cram Bars

(From the kitchen of Joyce's Great Grandmother)

½ cup butter
1 cup flaked coconut
2-½ cups Rice Crispies
1 cup chopped walnuts
1 tsp. Vanilla

Toast mixture at 350° in the oven for 10 mins., stir often. Remove from oven and stir in ¾ cup of brown sugar, stir well. Save ½ of crumbs for top. Slice ½ gal. of vanilla ice cream over crumbs in pan. Then cover with remaining crumbs. Freeze. Cut into bars or strips.