Keto Sourdough Bread: A Low‑Carb Twist on a Classic Recipe
This tangy, chewy keto sourdough loaf uses almond and coconut flours with a psyllium‑husks‑based starter for authentic sourdough flavor—without the carbs. Perfect for toast, sandwiches, or snacking on keto.
Equipment
- Large mixing bowl
- Small bowl or jar (for starter)
- Whisk
- Rubber spatula
- 8×4-inch loaf pan (or baking sheet)
- Proofing cloth or towel
- Oven
- Instant‑read thermometer (optional)
Ingredients
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
Optional Add‑Ins:
- 1 tbsp chia or flaxseeds
- 1 tsp dried rosemary or thyme
Instructions
Mix Starter (if needed):
- If you don’t have an active keto starter, mix 50 g almond flour + 50 g water + 1 tbsp vinegar in a jar. Cover and ferment 8–12 hours, feeding equal parts flour/water until bubbly.
Combine Dry Ingredients:
- In a large bowl whisk almond flour, coconut flour, psyllium husk, baking powder, salt, and erythritol.
Add Wet Ingredients:
- Beat eggs with warm water, vinegar, and 100 g starter. Pour into dry mix and stir until a sticky dough forms. Fold in seeds or herbs if using.
Bulk Fermentation:
- Cover dough with a damp towel. Let rest in a warm spot 1–2 hours, stretching and folding every 30 minutes during the first hour.
Shape & Proof:
- Dust work surface lightly with almond flour. Shape dough into a loaf and place into a greased 8×4‑inch pan. Cover and let proof 30–45 minutes in a warm spot.
Preheat & Bake:
- Preheat oven to 375°F (190°C). Score top of loaf with a sharp knife. Place a small pan of water on the oven floor for steam. Bake 40–50 minutes until golden and an internal temperature of 200°F (93°C).
Cool:
- Remove loaf and let cool in pan 10 minutes, then transfer to a wire rack. Cool at least 1 hour before slicing.
Notes
Nutrition (Per Slice)
- Calories: 160 kcal
- Total Fat: 14 g
- Total Carbs: 6 g
- Fiber: 3 g
- Net Carbs: 3 g
- Protein: 6 g