Compound Butter Toppers ~ What are compound butters? A flavoring or seasoning added to butter that provides amazing flavor when served over grilled or broiled meats, vegetables, cooked pasta or bread. Can be made and stored in the refrigerator or freezer and sliced as needed... Combine 1 stick butter, with your favorite flavor. Place on wax paper or plastic wrap and roll to form a log. Twist ends to seal and chill for one hour or freeze for later use.