Gluten-free Sourdough Discard Bread

You’ve made your gluten free sourdough starter. What now?  

The discard, or unused portion of the starter can be repurposed in a number of ways.  It’s the part of the starter that you don’t need to refresh or to use to leaven bread. You can throw it out, or you can use it to replace some of the flour and water in other recipes.  It adds a great texture and flavor to recipes, and it’s particularly useful for gluten free recipes. There’s something about gf grains that benefits immensely from the fermentation process. They become more flexible, more workable, and much tastier.

In this bread recipe the sourdough starter lends the bread strength, flexibility, and flavor.

Why is it not a regular sourdough bread? 

This bread is considered a discard bread, or sometimes called a hybrid loaf, because it contains sourdough but it's leavened with commercial yeast.

What does it taste like?  

Depending on the ingredients used, this bread can taste anywhere from very mild or even bland to very yeasty and flavorful.  It's not usually very sour at all, but it does have a sourdough flavor.  The milk enhances the yeasty flavors and helps with the crust browning.  The whole psyllium option is healthier and gives a taller, more cohesive loaf but it's a little less flavorful.  Ground or powdered psyllium gives a lighter crumb and brings a more intense sourdough flavor to the bread.

Sourdough Discard Boule Bread Recipe

Mix time: 20 min

First rise: 1-1.5 hours

Second rise: 20-60 minutes

Bake time: 45-50 minutes

Whisk together in a large bowl or in the bowl of a stand mixer:

275g flour:

115g potato starch

80g sorghum flour

40g tapioca starch

40g millet flour

Then whisk in:

20g ground/powdered psyllium husk OR 27g whole psyllium husk

8.7g sea salt

3g (or 1 tsp) active dry yeast

Once the dry ingredients are whisked together thoroughly, add:

200g sourdough discard (shown is ivory teff sourdough)

440g warm milk or water (45°c/115°f)

Mix the wet ingredients into the dry ingredients until thoroughly blended.

Let the dough rise until it's 25-50% bigger, about 1-1.5 hours at room temp.

After rising, mix the dough again.  Add:

12 g (or 1 TBSP) apple cider vinegar

75g tapioca flour

12g (or 1 TBSP) sugar

When the dough is mixed and smooth, turn it out of the bowl and knead it a few times until it forms a cohesive ball.  Shape it into a boule and put it seam side up in a flour banneton or a bowl lined with a well-floured towel. Let rise until it's 25-50% bigger, anywhere from 20 minute to 1 hour depending on the temperature and climate.

Preheat a dutch oven or a cloche in the oven to 230°c/450°f.  Once risen, bake the bread covered in the baking vessel for 30 minutes, then uncovered for 20 minutes. If it's getting very brown lower the temperature to 350° and bake until it sounds very hollow when tapped on the bottom with your knuckles, another 5-10 minutes.

Let the bread cool on a rack before slicing.

Enjoy your gluten-free bread!


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