Quick Chocolate-Potato Fudge 3 squares chocolate (2 sweet and 1 unsweetened) 3 tbsp. butter or margarine 1/3 cup mashed potato 1/8 tsp. salt 1 tsp. vanilla 4 cups sifted icing sugar (approximate) Melt chocolate and butter over hot water. Add the mashed potato, salt and vanilla. Blend in sugar. Knead until smooth. Shape into a long roll about 1 inch in diameter. Cool and cut into slices. Variations: Try 3 ounces of semi-sweet chocolate chips instead of the squares. You can also use butterscotch, peanut butter or chocolate mint.