Cooling melted butter seems to take years when I’m in a hurry. To cut corners, reserve a tablespoon or so of chilled butter, and stir it into the melted butter. But why cool melted butter in the first place? Adding ingredients of a different temperature often yields a lumpy batter as they quickly try to reach a common temperature. Butter turns back into its solid state, eggs cook, etc.

Need room temperature butter? Check out this tip.