Make sure to preheat the iron. When the batter is added to the hot iron, it makes the crispy and not soggy waffles. Actually, you should hear the sizzle as soon as you add the batter to the iron. More in detail: as soon as the batter hits the hot iron, the crust with immediately begin to set and crisp. Also, the moisture from the batter quickly turns into steam and evaporates. If the iron is not hot then none of these will happen and it results in soggy center.