Microwave Crunchy Chocolate Sauce
["1/4 c. milk", "1 sq. (1 oz.) unsweetened chocolate", "3/4 c. light brown sugar, packed", "??? c. crunchy peanut butter", "1/4 tsp. vanilla extract"]
["In a 1-quart glass measure, measure milk.", "Drop in chocolate. Microwave at High for 1 1/2 to 2 minutes.", "Blend well.", "Add sugar; stir to blend.", "Microwave 1 to 2 minutes until mixture boils.", "Add peanut butter and vanilla and stir until blended; serve warm or cool."]
["milk", "chocolate", "light brown sugar", "crunchy peanut butter", "vanilla extract"]