Fudge

1 - 12 oz package chocolate chips
1 cube butter
1 box powdered sugar (3 3/4 cups)
2 eggs
1 tsp vanilla
1 cup chopped walnuts (optional)

1. Melt chocolate chips and butter in double-broiler over low heat.
2. Beat eggs in bowl until lemon yellow in color. Add powdered sugar and beat well.
3. Add melted chocolate and vanilla to bowl. Beat well.
Add nuts if desired.
4. Pour into 9/13 in or 9x9 in buttered or foil lined pan. Pan size depends on how thick you like your fudge.

Cool and cut into squares. Keep unused portion in refrigerator.