Fudge for One

1/4 cup milk chocolate chips

2 tablespoons semisweet chocolate chips

1 3/4 ounces sweetened condensed milk

1-1/2 teaspoons butter

2 tablespoons and 2-3/4 teaspoons chopped walnuts (optional

1. Place chocolate chips, sweetened condensed milk, and butter or margarine in large microwaveable bowl. Zap in microwave on medium until chips are melted, stirring about every 30 seconds. Stir in nuts, if desired.
2. Pour into a small, greased glass bowl or cup. Refrigerate until firm.