In a separate small bowl, whisk together the syrup, rum, if using, and melted butter. Pour the glaze into the pan, or divide it evenly between the pans if you’re using 2 pans. Sprinkle the brown sugar and pecans on top of the glaze.☞ TESTER TIP: Lining your pan(s) with parchment paper will make for easier removal of your sticky buns.