Two-Flavor Fudge

2 cups firmly packed dark brown sugar
1 cup granulated sugar
1 cup evaporated milk
1/2 cup butter or margarine
1 (5 to 10 ounce) jar Marshmallow Cr?me
1 (6 ounce) package Nestle butterscotch-flavored chips
1 (6 ounce) package semisweet chocolate chips
1 cup English or black walnuts, chopped
1 teaspoon vanilla extract

Combine in saucepan dark brown sugar, granulated sugar, evaporated milk and butter or margarine. Bring to a FULL BOIL over MODERATE heat, stirring frequently. Boil for 15 minutes over MODERATE heat, stirring occasionally.

Remove from heat. Add Marshmallow Cr?me, butterscotch-flavored chips and semisweet chocolate chips. Stir until chips are melted and mixture is smooth. Blend in English or black walnuts and vanilla extract. Pour into a buttered 9-inch square pan. Chill until firm.

Makes approximately 2 1/2 pounds.