Yes. After heating the baking surface up but before adding the batter, spray it with a thin layer of cooking oil or, as is my preferred method, lightly rub a stick of butter over the surface. Either of these methods will help the outer layer of the waffles to become even crispier, and the butter will even add a bit or flavor to your waffle. The methods may also make it easier to lift your waffle out of the mold when it is done cooking.