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Sourdough Discard Waffles: Crispy, Tender, Ferment-Overnight

An overnight sourdough discard waffle batter that produces the crispest, most tender waffles you've ever made.

Maria Esposito5 min read

Sourdough discard waffles, fermented overnight, are the best waffles I've ever had. The long ferment develops complex flavor; the discard adds tang; the batter produces shatteringly crispy waffles with tender interiors.

The recipe

For 8 waffles:

The night before

  • 250g sourdough discard
  • 200g buttermilk (or milk + 1 tbsp lemon juice)
  • 200g all-purpose flour
  • 30g sugar

Whisk together in a bowl. Cover loosely. Leave at room temperature overnight (8–12 hours).

In the morning

  • 2 large eggs
  • 60g unsalted butter, melted
  • 1 tsp salt
  • 1 tsp baking soda

Add to the fermented batter. Whisk until combined.

Cook

Heat your waffle iron. Lightly grease.

Pour batter into the iron (amount depends on your iron). Cook until golden and crisp — usually when steam stops escaping.

Why overnight matters

The 8–12 hour ferment:

  • Develops complex flavor (acids, esters, alcohols)
  • Pre-hydrates the flour
  • Slightly leavens the batter
  • Improves digestibility

A same-morning waffle batter is fine. An overnight batter is dramatically better.

The crispness factor

These waffles get exceptionally crisp because:

  • Higher fat content (butter)
  • Long ferment changes the gluten structure
  • Acidic batter promotes browning
  • High heat in waffle iron seals the surface fast

Other tips for maximum crispness:

  • Cook longer than you think (until steam stops, then 30 more seconds)
  • Don't stack waffles (steam softens them) — cool on a wire rack
  • Serve immediately

Variations

Chocolate chip waffles

Stir in 1 cup chocolate chips before cooking.

Pumpkin spice waffles

Replace 100g buttermilk with 100g pumpkin purée. Add 1 tsp pumpkin pie spice.

Cinnamon swirl waffles

Mix 30g brown sugar with 1 tbsp cinnamon. Sprinkle into each waffle as you pour the batter.

Bacon waffles

Stir in 1 cup chopped cooked bacon.

Cornbread waffles

Replace 100g flour with 100g cornmeal. Slightly sweet, savory waffles.

Whole wheat waffles

Replace half the flour with whole wheat. Heartier flavor.

Common mistakes

Waffles are soggy — under-cooked, or stacked while hot. Cook longer; cool on rack.

Waffles are dense — old leavening, or batter wasn't fermented long enough.

Waffles burn before cooking through — iron too hot. Most have a temperature dial.

Waffles stick to iron — iron not greased, or batter has too much sugar.

Waffles are too sour — fermented too long (over 14 hours), or discard was very old.

Yeast vs. discard waffles

Some classic waffle recipes use yeast for the overnight ferment. The differences:

  • Yeast waffles: lighter, more bread-like flavor
  • Discard waffles: tangier, more complex, slightly heartier

Both are excellent. Discard wins for me because it doesn't require buying yeast and uses up sourdough discard.

Make-ahead and freezing

Cooked waffles freeze beautifully:

  • Cool completely on a wire rack
  • Freeze flat on a sheet pan
  • Transfer to zip-top freezer bag
  • Last 3 months in the freezer

Reheat in toaster directly from frozen. Crispness returns immediately.

A weekend's worth of waffles becomes a month of weekday breakfasts.

A weekend routine

Friday night

  • Mix the overnight batter
  • Cover, leave on counter

Saturday morning

  • Add eggs, butter, salt, baking soda
  • Cook waffles
  • Eat 4–6
  • Freeze 4–6 for the week

Throughout the week

  • Pop frozen waffles into the toaster for breakfast
  • Top with butter, syrup, or peanut butter

One Saturday morning of work = breakfast for 4 days.

Toppings beyond syrup

Maple syrup is classic, but waffles are versatile:

Sweet toppings

  • Whipped cream and berries
  • Nut butter and banana
  • Yogurt and granola
  • Lemon curd
  • Caramelized apples

Savory toppings

  • Fried egg and avocado
  • Pulled pork and slaw
  • Smoked salmon and dill
  • Chicken and gravy (Southern style)

A great waffle is a base for many meals.

The waffle iron question

A good waffle iron makes a meaningful difference:

  • Belgian-style — deep pockets, hold lots of syrup
  • Classic American — shallower, crispier overall
  • Cast iron stovetop — old-fashioned, requires practice

Modern Belgian waffle irons ($40–80) work great. The crispness depends more on your batter than your iron.

Cost comparison

A box of frozen waffles: $4 for 10.

Homemade sourdough discard waffles: about $1.50 for 8 (and dramatically better).

The biggest savings is in quality, not money.

Why these are addictive

Most boxed waffles are pillowy and soft. These waffles are crispy and complex. The contrast is significant once you've experienced both.

The first time you make these, you'll be surprised how good waffles can be. The second time, you'll wonder why you ever ate the boxed version.

A beginner's discard recipe

If you're new to sourdough discard recipes, waffles are a great starting point:

  • Forgiving batter
  • Quick to make
  • Instantly rewarding
  • Uses up substantial discard (250g per batch)

A jar of discard sitting in your fridge becomes a Saturday morning treat.

A scaling note

For one or two people:

  • Halve the recipe (makes 4 waffles)
  • Or make the full batch and freeze most

Waffle batter doesn't scale down well below half a recipe. The leavening becomes hard to measure.

The Sunday brunch upgrade

For a special weekend brunch:

  • Add the overnight discard waffles
  • Crispy bacon
  • Soft scrambled eggs
  • Fresh fruit
  • Coffee

The waffles elevate the whole table. Guests notice.

A final note on the routine

These waffles fit naturally into a sourdough kitchen rhythm:

  • Bake bread weekly
  • Generate discard
  • Make waffles every other Saturday
  • Make pancakes the alternate Saturday
  • Make crackers monthly
  • Make banana bread occasionally

Discard never accumulates. The waste-free sourdough kitchen runs on routines like this.

The waffles are one of the most rewarding routines. Once it's a habit, weekend breakfasts feel different — better, more anchored in something real.

That's the gift of a kitchen ritual. Sourdough waffles are worth keeping.