I keep my applesauce spiced very simply but if you love more complex flavors, you could add a little of each of the following (no more than 1/2 teaspoon each): nutmeg, pumpkin spice, allspice and cloves.
I used a potato masher to make the mixture a little less chunky after it’s done cooking down. An immersion blender or blender to puree the sauce would make the consistency even smoother.