Once you make these Sourdough Waffles with whole grain, you’ll never go back to baking powder waffles again. Looking for a weekend breakfast or brunch recipe? Not anymore.

Nothing is better for breakfast than hot and fresh waffles dripping with real maple syrup and maybe a pat of melting butter.
But waffles must be eaten the minute they come off the waffle iron for maximum crunch. So I almost never order them out because they almost always disappoint.
But why would you want to go out for breakfast when you can make these lovelies in the comfort of your own kitchen? They’re crisp and light yet substantial.
Even though I’m a baker by profession, I’m definitely not a morning person. If you’re like me and prefer the least amount of work first thing in the morning, you’ll love this recipe.
Make the sponge the night before, then it takes about a minute to finish mixing the batter in the morning.


If you don’t have one, check out my post to learn How to Make a Sourdough Starter. Then check out my system to Feed and Maintain Sourdough Starter.
Why Sourdough Waffles are better than regular waffles:
- Make your sponge the night before with the unfed starter and the sponge will be active and ready to mix by the time you wake up hungry for breakfast.
- The sourdough starter and whole grains give the waffles a great bread-like chew.
- A little baking soda is added to react with the buttermilk in the batter.
- The baking soda gives the waffles a last minute lift for lightness.
- For maximum lift use the batter as soon as the baking soda is mixed in because the reaction happens upon mixing, not in the heat of the waffle iron.
- Serve them hot off the iron or hold them in a 200°F oven if you prefer to serve them all at once.
- The waffles freeze beautifully so extras can be placed in a freezer bag for another day. Just pop them in the toaster whenever the mood strikes.


Serve these Whole Grain Sourdough Waffles with real maple syrup. I’m a fan of Grade B Maple Syrup‘s strong flavor (it’s sometimes called Grade A extra dark).
For another sourdough breakfast treat, try these Sourdough Pancakes.
I know you hate to throw away that sourdough discard. Check out these recipes that use sourdough discard.
If you love this recipe, I’d appreciate a 5-star review!
Sourdough Waffle Recipe
Ingredients
Overnight Sponge
- 8 oz unfed sourdough starter (1 cup, 100% hydration)
- 5 oz unbleached All-Purpose Flour (1 cup)
- 2 ½ oz whole wheat flour (½ cup)
- 2 ½ oz rye flour (½ cup)
- 2 oz granulated sugar (¼ cup)
- 16 oz buttermilk (2 cups)
Batter
- Sponge
- 3 oz unsalted butter (melted)
- 2 large eggs (room temperature)
- 1 teaspoon table salt
- 1 teaspoon baking soda
Instructions
- In a large mixing bowl, combine 8 oz unfed sourdough starter, 5 oz unbleached All-Purpose Flour, 2 ½ oz whole wheat flour, 2 ½ oz rye flour, 2 oz granulated sugar and 16 oz buttermilk. Cover with plastic wrap and leave at room temperature overnight.
In the morning:
- Preheat the waffle iron. Preheat the oven if you want to hold the waffles before serving.
- Melt 3 oz unsalted butter in a small microwave safe measuring cup or bowl. Whisk 2 large eggs into the slightly warm butter. Add the butter mixture to the sponge. Sprinkle 1 teaspoon table salt and 1 teaspoon baking soda over the batter.
- Mix until the baking soda and salt are completely dispersed in the batter. Once the baking soda is added you should use the batter immediately.
- Make the waffles according to the waffle iron manufacturer's instructions. Serve waffles immediately or hold in a 200 °F warm oven till ready to serve.
Equipment
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shirley
Friday 17th of September 2021
my sponge didnt rise or got active…
Eileen Gray
Saturday 18th of September 2021
That would be due to the starter.
Amber Purrington
Thursday 13th of May 2021
I love the flavor of this recipe! For some reason my waffles always flattens. I follow almost exactly..I add vanilla extract and 1 tbsp of sugar before I cook them. Any suggestions?
Eileen Gray
Thursday 13th of May 2021
I would say to cook them a little longer so they're nice and crisp on the outside. With a crisp crust they'll be less likely to deflate. Also, eat them right off the waffle maker.
Karen
Sunday 25th of April 2021
Eileen, Because your Whole Wheat Sandwich Bread recipe was so successful(I have made it nearly a dozen times this past year)I was intrigued about the sourdough waffle recipe. I had just received a shipment of rye flour and so had no excuses! Last evening I made the sponge and because it seemed such a sturdy mixture, I had my doubts as to whether or not it would turn out. This morning I soldiered on and to my surprise produced the very best waffles I have ever made. The color is light mahogany, the texture is crispy and chewy and the flavor perfect. And we have 7 "squares" in the freezer for another day. Thank you!
Irene
Tuesday 16th of March 2021
What is the minimum amount of time this waffles need to sit for? I often don’t think of making waffles ahead of time so it becomes an issue.
Eileen Gray
Wednesday 17th of March 2021
Hi Irene, the reason you let the sponge sit overnight is because you are using unfed sourdough starter (or discard). The sponge needs time to feed the yeast in the starter. You could mix the dough in the morning using active starter that has been fed the night before. But that also requires planning ahead. If you keep your starter fed at all times then you'd be ready to go in the morning.
Allyson
Saturday 27th of June 2020
I thoroughly love these waffles! I’ve made them with the different grains. As well as with just all purpose flour. Tonight I’m making them with just a mix of AP flour & whole wheat flour. Anyway, I got to wondering if I could replace the rye flour with cornmeal or semolina?
Eileen Gray
Saturday 27th of June 2020
Yup, cornmeal or semolina would add a nice crunch.