1. Place the butter in a small heavy saucepan and melt over low heat. Remove from the heat and let rest for 5 minutes.
2. With a spoon, carefully remove the foamy white butter fat that has risen to the top and discard. Spoon the next layer of clear golden liquid into a bowl. This is the clarified butter. Discard any remaining solids that remain in the saucepan.
3. Cool the clarified butter and place it in a covered container. Refrigerate for up to 3 weeks or freeze it and use as needed.