1 large garlic clove chopped
1/4 cup fresh lime juice
1 tsp salt
1/2 tsp pepper
1 stick (1/2 cup) butter, melted
Puree garlic with lime juice, salt, and pepper in a blender until smooth. With motor running, add melted butter and blend until emulsified, about 30 seconds.
You can put this on many things such as fish, chicken, pasta, etc.
This can be made a day ahead of time and kept in the fridge covered. Stir before using.