Learn how to add sourdough discard to any recipe. It’s a simple calculation that can transform your favorite recipes into delicious sourdough creations. Use this conversion for any type of starter, including all-purpose starter, fresh-milled starter, or an einkorn sourdough starter.
For Grams: Weigh the amount of discard you want to add to the recipe. Let’s assume you weigh out 100 g of sourdough discard.
sourdough starter
Divide your starter weight in half. We do this because your starter is made with half flour and half water. Half of 100 g of discard is 50 g flour and 50 g water.
Check the weight of the flour and liquid in the original recipe. Assume the recipe calls for 400 g flour and 150 g milk.
ingredients for original recipe
Reduce the flour and liquid in the original recipe by half of your starter’s weight (50 g flour and 50 g liquid from Step 2).For example, if the original recipe calls for 400 g flour, reduce it to 350 g. If the original recipe calls for 150 g milk, convert it to 100 g.Continue the recipe as usual. Mix the discard in with the liquid ingredients.
For Volume. choose how much discard you want to add, then subtract the corresponding amounts of flour and liquid from the original recipe.1/4 cup discard → subtract 1/4 cup flour & 2 tablespoons liquid1/3 cup discard → subtract 1/3 cup flour & 2 tablespoons + 2 teaspoons liquid1/2 cup discard → subtract 1/2 cup flour & 1/4 cup liquid2/3 cup discard → subtract 2/3 cup flour & 1/3 cup liquid1 cup discard → subtract 1 scant cup flour & 1/2 cup liquid
If measuring in volume, keep in mind the bubbles in your starter take up space. I recommend stirring out any bubbles because measuring in volume.
The nutritional data will vary based upon your recipe.
If any grey liquid is on the surface of your starter, pour it off before using your starter. Though it looks funky, hooch is just a sign your starter is hungry.
I usually stick with 50-100 g of discard. But you can use up to 200 g if you have more discard to use.
The older the discard, the more acidic and sour it will taste. So, if you prefer less sourdough flavor in your baked goods, use a recently fed starter.
The starter will combine more easily if you add it with the liquid. Since egg is an emulsifier, I usually toss the discard in with the eggs.
Make a note of the conversions before you start baking so you don’t get mixed up. And save them for next time!