Microwave Fudge
["1 stick butter", "1 box xxxx confectioners sugar", "1/4 c. milk", "1/4 c. cocoa", "1 Tbsp. vanilla"]
["Combine in glass bowl. Microwave on high for 3 minutes. Whip with wire whisk until smooth."]
["butter", "confectioners sugar", "milk", "cocoa", "vanilla"]