How do I keep waffles crispy after cooking?
Place cooked waffles on a wire rack in a 200°F oven while you finish the batch. Do not stack them hot. Stacking traps steam, and steam is the sworn enemy of crunch.
Can I make the batter the night before?
You can mix the dry ingredients and the wet ingredients separately and refrigerate overnight. In the morning, combine them (do not combine early, or the leavening starts working before you are ready), then whip and fold in the egg whites right before cooking. Whipped whites do not hold their magic overnight.
Why did my waffles stick to the iron?
Usually one of three things: the iron was not hot enough, it needed a light brush of oil, or the waffles were opened too early. Wait until steam slows down and the waffle releases more easily.
Can I make these without separating eggs?
Yes, but they will be less fluffy. If you skip the whipped whites, you can try adding up to 1/2 teaspoon baking powder for a little extra lift. It is optional, and too much can taste a bit chemical depending on your brand, so start with less if you are sensitive.
Can I use buttermilk instead of milk?
Absolutely. Use the same amount. Buttermilk brings a gentle tang and a little extra tenderness. For the most precise results (and better browning), add 1/4 to 1/2 teaspoon baking soda when using buttermilk.
What waffle iron works best?
Belgian-style irons make thicker waffles with a softer center. Classic irons make a thinner waffle with more edge-to-center ratio, which means more crunch. This batter works great in both.