Substitute applejack for the bourbon.
Old Fashioned Variation
In an old fashioned, or rocks, glass place a half cube of sugar. Soak the sugar with two to three dashes of Angostura bitters. Add a splash, if that, of water. Muddle until the sugar is completely dissolved in the bitters. Muddle a small piece of orange peel. Add two ounces of applejack, and some ice.