Beat butter in a small bowl with an electric mixer on medium for 30 seconds. If you don't have a mixer, use a fork.
Beat or stir in desired flavorings. If necessary, refrigerate for 15 to 30 minutes or until firm enough to shape into a log.
Shape butter mixture into a 4-1/2 x 5-inch-long log using plastic wrap or parchment paper. Wrap tightly and refrigerate for 30 minutes or until firm.
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