I know many recipes call for baking muffins at 350 °F. However, with my careful attention to detail and keenness for a soft, moist baked good, I find that baking gluten-free muffins (and cookies) at a lower temperature of 325°F is the holy grail. So, for this recipe, you will bake the pumpkin muffins at 325°F for 30 minutes. Again, baking at a lower temperature ensures that the center will be fully cooked without burning the tops.