Add the butter in the bowl of an electric mixer fitted with a paddle attachment. Whip the butter until smooth and creamy.
2 cups salted butter
Remove from the mixer and add the minced garlic and chopped basil. Use a spatula to fold the garlic and basil into the butter.
2 cloves garlic, 6-8 basil leaves
Spread the butter mixture onto a piece of parchment paper about 4 inches long, by 2 inches wide. Roll the butter up in the parchment paper to make a log. Refrigerate until firm before cutting into slices (about 1 hour).