At a Glance
This low‑carb Eiweißbrot is a sourdough loaf built around high‑protein flours and binding fibers (psyllium, gluten). Long, cool fermentation improves flavor and digestibility while preserving a dense, sliceable crumb — principles supported by sourdough science and practical techniques[1][2][1].
Not suitable if:
- • You need a light, airy sandwich loaf → choose a wheat sourdough instead
- • You don't have an active sourdough starter → create or refresh a starter
🛒 Recommended Products
We recommend the following tools for this recipe:
Digital Kitchen Scale
Essential for accurate flour and water measurements
Large Mixing Bowl
Room to combine dense, sticky low‑carb dough
Dough Scraper
Makes handling sticky dough and incorporation easier
Banneton Proofing Basket
Supports shape and surface drying for a better crust
Dutch Oven
Creates steam and even heat for a good crust
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Ingredients
Weigh all ingredients on a kitchen scale. Low‑carb doughs rely on precise hydration and fiber ratios to set structure; small deviations change texture[1].
| Ingredient | Amount | % | Note |
|---|---|---|---|
| Vital wheat gluten | 200g | 40% | Provides structure and chew |
| Almond flour (finely ground) | 150g | 30% | Adds fat and nutty flavor; not blanched if you want texture |
| Psyllium husk powder | 60g | 12% | Hydrophilic binder that creates gel and crumb |
| Ground flaxseed | 40g | 8% | Adds fiber and moisture retention |
| Water | 380g | 76% | Warm water helps hydrate psyllium and gluten |
| Active sourdough starter (wheat or rye) | 80g | 16% | Mature and bubbly; increases acidity and flavor |
| Salt | 12g | 2.4% | |
| Sunflower seeds (toasted) | 80g | 16% | Optional — for crunch |
Schedule
Overnight Cold Retard (recommended)
Mix in evening, shape, and cold proof to bake next day.
Daytime Version
For people baking the same day.
💡 Tips
- If dough feels overproofed before cold retard, shorten room‑temp bulk and increase fridge time — acid development continues in cold[2].
- Shaped loaves keep 48h in fridge; beyond that flavor becomes very sour and texture tightens[1].
Step by Step
Mix dry ingredients
Combine vital wheat gluten, almond flour, psyllium, ground flax, and salt in a large mixing bowl. Whisk to homogenize so psyllium and flax distribute evenly — this prevents clumping and ensures consistent hydration[1].
⏱ 5 minutes
Hydrate and autolyse
Add water and starter to the dry mix. Stir with a dough whisk or dough scraper until all dry bits are hydrated. Rest 15–30 minutes to let psyllium and flax form gel — this substitutes for gluten development in low‑carb doughs[2].
⏱ 15–30 minutes
Add seeds and finish mixing
Fold in sunflower seeds with the dough scraper. For even distribution, fold from the outside toward the center several times; no kneading is needed—you're forming a uniform mass, not gluten strength[1].
⏱ 3 minutes
Bulk fermentation
Cover the bowl with a clear container lid or towel. Ferment at 68–72°F (20–22°C). Expect limited volume increase; instead look for surface bubbles and a slightly domed surface — structure is fiber‑driven, not gas‑driven[2].
⏱ 3–5 hours (varies)
Shape
Turn dough onto a surface dusted with psyllium or almond flour. Use a dough scraper to shape into a compact loaf — press and fold rather than stretching. Place seam side up in a floured banneton or lined loaf pan.
⏱ 8 minutes
Final proof (cold retard recommended)
Cover and refrigerate 8–18 hours. Cold retard improves flavor and makes handling easier. If proofing at room temp, watch for a slight rise and finger‑spring reaction — it should spring back slowly[1].
⏱ 12–18 hours in fridge or 1–2 hours at room temp
Bake
Preheat oven to 240°C/465°F with your Dutch oven inside for 30–45 minutes. Turn loaf onto parchment paper, score with a bread lame if desired. Bake covered for 20–25 min, then remove lid and reduce to 190°C/375°F for 25–30 min until crust is deep brown. Check internal temperature with an instant‑read thermometer: aim for 98–100°C / 208–212°F for dense protein loaves[1][2].
⏱ 50–60 minutes
Cool and rest
Remove using oven mitts and cool on a rack for at least 2 hours. Cooling completes crumb setting — slicing early yields gummy texture[1].
⏱ 2+ hours
Tips & Variations
Variations
Seed mix
Replace sunflower seeds with mixed seeds (pumpkin, sesame, chia) 80g
→ More variety in texture and flavor
Higher protein
Increase vital wheat gluten by 25g
→ Slightly firmer, chewier crumb
Nut‑free
Use extra oat fiber or ground sunflower kernels instead of almond flour
→ Keeps carbs low while avoiding nuts
Pro Tips
- 💡 Measure hydration by feel — psyllium absorbs water over time; dough will firm during retardation[2].
- 💡 Slice with a serrated bread knife after full cooling; thin slices store well.
- 💡 Use a dough scraper to portion and clean the bowl efficiently.
Common Issues
Not going as planned? Common issues:
Storage
Airtight bag (room temp)
3–4 days
Keep sliced and press out air
Refrigerator (sliced)
7–10 days
Low‑moisture breads last longer chilled
Freezing
3 months
Slice before freezing and toast slices from frozen
⚠️ If you prefer a softer crumb, short refrigeration is fine; long storage in the fridge accelerates staling for wheat‑based breads due to starch retrogradation[1].