Instructions: Butter a 9x9x2-inch baking pan or line pan with foil and butter foil. Set aside.

In a large saucepan, combine sugar, butter, and milk. Bring mixture to a full rolling boil over medium heat; reduce heat. Boil for 2 minutes. Remove from heat.

Stir in chocolate pieces, marshmallows, and vanilla. Continue stirring until smooth. Stir in nuts, if desired. Spread in prepared pan. Chill in refrigerator about 4 hours or until firm. Cut into 1-inch squares. Store in covered container in refrigerator or freezer.

Makes about 2 pounds (72 pieces).

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