Too Easy Chocolate-Peanut Butter Fudge

I think I got this from the cookbook "Peanut Butter Planet". It has only 5 ingredients and is super easy to make.

• Ready In: 15 mins
• Serves: 36
• Yields: 36 square

Ingredients

• 8  ounces  semi-sweet chocolate chips
• 1  cup peanut butter
• 1⁄2 cup margarine
• 1  cup confectioners' sugar
• 1  teaspoon vanilla

Directions

1. Melt together the peanut butter, chocolate, and margarine over low heat until the chocolate is melted.
2. Remove from heat and whisk in sugar and vanilla until smooth and well blended.
3. Scrape mixture into greased 8-inch square baking pan.
4. Chill.