You won't believe how delicious this fudge is, considering how easy it is to make. Thanks go again to my grandmother-in-law. Here's the recipe:
1 (12 oz.) prepared chocolate cake frosting
1 jar (16 oz.) peanut butter (smooth or chunky)
Grease 8" microwave-safe pan. Spread frosting in pan and smooth top. Add peanut butter. Cover. Microwave at high 2 to 2 1/2 minutes. Watch carefully. Remove from microwave and stir well. Refrigerate for at least 1 hour. Cut into small squares. Enjoy rapturously good fudge!