Keto Sourdough Bread: A Low‑Carb Twist on a Classic Recipe

Introduction

This Keto Sourdough Bread offers a low-carb alternative to traditional sourdough, perfect for those following a ketogenic lifestyle. It combines almond and coconut flours with a tangy keto starter, resulting in a flavorful, moist loaf with a crisp crust.

Ingredients

• 1½ cups almond flour
• ⅓ cup coconut flour
• 2 tbsp psyllium husk powder
• 1 tsp baking powder
• ½ tsp sea salt
• ¼ cup erythritol (optional for slight sweetness)
• 2 large eggs
• ¾ cup warm water
• 1 tbsp apple cider vinegar
• 100 g active keto sourdough starter
• 1 tbsp chia or flaxseeds
• 1 tsp dried rosemary or thyme

Instructions

1. Step 1: If you don’t have an active keto starter, mix 50 g almond flour, 50 g water, and 1 tbsp apple cider vinegar in a jar. Cover and ferment in a warm spot for 8–12 hours, feeding equal parts flour and water until bubbly.
2. Step 2: In a large bowl, whisk together almond flour, coconut flour, psyllium husk powder, baking powder, sea salt, and erythritol (if using).
3. Step 3: Beat the eggs with warm water, apple cider vinegar, and the 100 g keto sourdough starter. Pour this wet mixture into the dry ingredients and stir until a sticky dough forms. Fold in chia or flaxseeds and dried herbs if desired.
4. Step 4: Cover the dough with a damp towel and let it rest in a warm place for 1–2 hours. During the first hour, stretch and fold the dough every 30 minutes to develop structure.
5. Step 5: Lightly dust a work surface with almond flour. Shape the dough into a loaf and place it into a greased 8×4-inch loaf pan. Cover and let proof for 30–45 minutes in a warm spot.
6. Step 6: Preheat your oven to 375°F (190°C). Score the top of the loaf with a sharp knife. Place a small pan of water on the oven floor to create steam, then bake the bread for 40–50 minutes until golden and the internal temperature reaches 200°F (93°C).
7. Step 7: Remove the loaf from the oven and let it cool in the pan for 10 minutes. Transfer the bread to a wire rack and cool completely, at least 1 hour, before slicing.

Tips & Variations

• For a nut-free version, substitute almond flour with sunflower seed flour and adjust hydration slightly.
• Add a tablespoon of seeds like pumpkin or sesame for extra texture and nutrition.
• Herbs such as rosemary or thyme add a lovely aroma and complement the tang of the sourdough.
• If your dough is too dry, add warm water a tablespoon at a time until it forms a sticky consistency.

Storage

Store the bread wrapped tightly in plastic wrap or in an airtight container at room temperature for up to 3 days. For longer storage, freeze sliced bread in a sealed bag for up to 2 months. To reheat, toast slices or warm in the oven for a few minutes.

How to Serve

Serve this delicious recipe with your favorite sides.

FAQs

Can I use regular sourdough starter instead of a keto one?

Regular sourdough starter typically contains wheat flour which is not low-carb. For keto-friendly bread, use a starter made with low-carb flours like almond flour to keep carbohydrates low.

Why is psyllium husk powder included in the recipe?

Psyllium husk powder helps mimic the texture of gluten by binding moisture and providing structure, resulting in a soft yet sturdy bread crumb that holds together well.

Keto Sourdough Bread: A Low‑Carb Twist on a Classic Recipe

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This Keto Sourdough Bread is a low-carb twist on the classic sourdough, perfect for those following a ketogenic diet. Made with almond and coconut flour, psyllium husk for texture, and a keto-friendly sourdough starter, this bread provides a delicious, tangy flavor with the familiar sourdough tang. The addition of chia or flaxseeds and herbs like rosemary or thyme adds a subtle crunch and an aromatic depth. With a gentle fermentation process and baking in the oven with steam for a perfect crust, this bread is soft inside and crisp on the outside, making it an excellent ketogenic bread alternative.

• Author: Cleo
• Prep Time: 15 minutes (plus 8–12 hours if making starter)
• Cook Time: 45 minutes
• Total Time: 1 hour 15 minutes active (plus 8–12 hours starter fermentation if needed)
• Yield: 1 loaf (8×4 inch pan, approx. 10 slices) 1x
• Category: Bread
• Method: Baking
• Cuisine: Keto, Low-Carb
• Diet: Gluten Free

Ingredients

Scale 1x2x3x

Dry Ingredients

• 1½ cups almond flour
• ⅓ cup coconut flour
• 2 tbsp psyllium husk powder
• 1 tsp baking powder
• ½ tsp sea salt
• ¼ cup erythritol (optional for slight sweetness)

Wet Ingredients

• 2 large eggs
• ¾ cup warm water
• 1 tbsp apple cider vinegar
• 100 g active keto sourdough starter

Add-Ins

• 1 tbsp chia or flaxseeds
• 1 tsp dried rosemary or thyme

Instructions

1. Mix Starter (if needed): If you don’t have an active keto starter, combine 50 g almond flour, 50 g water, and 1 tbsp apple cider vinegar in a jar. Cover and ferment at room temperature for 8–12 hours, feeding with equal parts flour and water until bubbly and active.
2. Combine Dry Ingredients: In a large bowl, whisk together almond flour, coconut flour, psyllium husk powder, baking powder, sea salt, and erythritol (if using). Ensure even distribution of ingredients to avoid lumps.
3. Add Wet Ingredients: Beat the eggs with warm water, apple cider vinegar, and 100 g of the active keto sourdough starter. Pour this wet mixture into the dry ingredients and stir thoroughly until a thick, sticky dough forms. Fold in the chia or flaxseeds and dried herbs if desired for added flavor and texture.
4. Bulk Fermentation: Cover the dough with a damp towel and let it rest in a warm spot for 1–2 hours. During the first hour, perform stretch and fold techniques every 30 minutes to develop structure and elasticity.
5. Shape & Proof: Lightly dust your workspace with almond flour. Shape the dough into a loaf that fits an 8×4-inch greased pan. Place the dough in the pan, cover, and allow it to proof in a warm area for 30–45 minutes, until slightly risen.
6. Preheat & Bake: Preheat your oven to 375°F (190°C). Score the top of the loaf with a sharp knife to allow controlled expansion. Place a small pan of water on the oven floor to create steam, which helps develop a crusty exterior. Bake the bread for 40–50 minutes until it turns golden brown and the internal temperature reaches 200°F (93°C).
7. Cool: Remove the loaf from the oven and allow it to cool in the pan for 10 minutes. Then transfer it to a wire rack and cool completely, at least 1 hour, before slicing to ensure proper texture and ease of cutting.

Notes

• Using psyllium husk powder is key for mimicking the texture of traditional bread in gluten-free, keto recipes.
• The keto sourdough starter requires regular feeding to remain active and lively for baking.
• The optional erythritol provides a slight sweetness but can be omitted for a savory loaf.
• Adding herbs and seeds enhances flavor and nutritional value but can be adjusted based on preference.
• Steam during baking is critical to forming a crisp crust, so don’t skip placing the water pan in the oven.
• Allowing the bread to cool fully before slicing prevents crumbly texture and ensures better slice integrity.

Keywords: keto sourdough bread, low-carb bread, gluten free bread, almond flour bread, coconut flour bread, keto bread recipe, sourdough starter, psyllium husk bread