1 1/2 cups sugar
2 cups miniature marshmallows
1 5-ounce can evaporated milk
1/4 cup margarine or butter
1 12-ounce package semi-sweet chocolate pieces
1 teaspoon vanilla extract
1 10- to 12- ounce can mixed nuts
In 2-quart microwave-safe glass, measure and cook sugar, 1 cup marshmallows, milk and margarine on high 4 1/2 to 6 1/2 minutes until melted, stirring once during cooking. Stir.
Cook 1 1/2 minutes. Stir in chocolate and vanilla until smooth. Fold in nuts and remaining marshmallows. Spread in foil-lined 8-inch by 8-inch baking pan. Refrigerate until firm.
Cut into 24 pieces.