4 tablespoons sweet butter, diced 1/4 cup light brown sugar 1/4 cup light corn syrup 2/3 cup milk
Heat butter, sugar and syrup in a heavy saucepan over low heat, stirring, until the sugar has dissolved. Bring to a boil and boil until the temperature reaches about 240 degrees F. Cool slightly, then stir in the milk and let cool completely.
