Place 1 cup butter in a 4 cup glass measuring cup.
Cover with paper towel.
Microwave 1 minute 30 seconds to 2 minutes [MEDIUM HIGH-9, 1 minute 45 seconds to 2 minutes 15 seconds] or until melted.
Carefully drain off clear layer from cloudy layer.
The clear layer is called "clarified butter" and is used as a dip for cooked lobster or other seafood