To keep your homemade waffles nice and crisp, cook on high heat and don’t stack. Too much steam makes waffles soggy. Place cooked waffles in a single layer on a baking sheet. Set oven to 250° and pop the baking sheet in while you cook or just before serving to keep them nice and toasty. When reheating, skip the microwave. They’ll lose their crispness. Instead, place them in a 350° oven for a couple minutes, or reheat them on the stove top or in a toaster (if they fit), or place them right back into the waffle iron set to a lower heat.