Microwave Fudge

3 cups semi-sweet or milk chocolate chips
1 can (14 oz) sweetened condensed milk
1/4 cup margarine or butter
1 cup chopped walnuts or pecans, if desired

1. Place all ingredients except nuts in large microwavable bowl.
2. Microwave at medium heat (50%) until chocolate chips are melted, 3 - 5 minutes. Stirring once or twice during cooking.
3. Stir in nuts.
4. Pour into well greased square baking dish, 8 x 8 in.
5. Refrigerate until set.

**Variation- substitute 1 cup peanut butter chips for 1 cup of the chocolate chips.