Best Sourdough Belgian Waffles

These waffles are how to put your sourdough starter discard to work for breakfast. A full cup of starter goes into the batter, lending the gentle tangy flavor that defines great sourdough waffles and contributing to a crispier shell than standard recipes can match.

The technique that sets these apart is separating the eggs and folding the beaten whites in last. This step is the difference between a heavy, dense waffle and the cloud-light, deep-pocketed Belgian-style result you’re after. Beat the whites until stiff peaks just hold their shape (firm but still glossy), then fold them in with a rubber spatula in three additions. Cut down through the center, sweep up the side, and turn. You’re trying to keep every bubble of air alive.

A hot waffle iron is non-negotiable for that contrast between shatteringly crisp exterior and tender interior. Let it preheat fully before pouring batter, and butter the grids generously even on a non-stick model.

Five minutes is the average bake time, but go by color, not the clock. Pull when the waffles are deep golden brown.

Pro Tips

• Use unfed starter (discard) straight from the fridge. The tang is more pronounced and the texture is identical.
• Don’t open the iron too early. Steam is what makes the inside fluffy, and lifting the lid too soon tears the waffle in half.
• Hold finished waffles directly on the rack of a 200°F (95°C) oven so the bottoms stay crisp.
• Leftover batter holds in the fridge overnight. The flavor deepens.

Variations

• Add a teaspoon of cinnamon and pinch of nutmeg to the dry mix for spiced waffles.
• Stir a half cup of chocolate chips or blueberries into the finished batter.
• Use buttermilk in place of regular milk for an extra tangy version.