Peanut Butter Microwave Fudge
["3 c. peanut butter chips", "1/3 c. chopped nuts (optional)", "1/4 c. margarine (1/2 stick)", "1 c. (14 oz.) Eagle Brand milk"]
["Put all ingredients except nuts in a 2-quart microwave dish. Microwave on High 4 minutes.", "Add nuts and blend only once until smooth.", "Chill in refrigerator.", "Cut into squares."]
["peanut butter", "nuts", "margarine", "milk"]