Try this Apple-Butter Cinnamon Buns variation: Instead of using the cinnamon-pecan filling in the main recipe, mix ¾ cup apple butter, 1-½ Tbs. melted butter, and 1 tsp. ground cinnamon in a small bowl. Omit the melted butter from the main recipe and spread the dough rectangle with the apple mixture, leaving a ½-inch border around the edges. Sprinkle with ¾ cup (3 oz.) finely chopped walnuts, if desired. Roll, cut, bake, and ice as directed. Because this filling is wetter, the buns may need to bake for 30 minutes.