Microwave Peanut Butter Fudge - cooking recipe

Ingredients

1 (14 ounce) can condensed milk
2 cups sugar
1/2 cup butter or 1/2 cup margarine
1 teaspoon vanilla extract
1 cup peanut butter

Preparation

Place all ingredients except the peanut butter and vanilla in a deep microwave proof dish (mixture will rise considerably while cooking).
Microwave for 2 minutes then stir.
Microwave for a further 5 minutes.
Add vanilla and peanut butter and stir well.
Place in a greased dish and allow to cool.
Cut into squares when cool.