Flaxseed Meal Sourdough Sandwich Bread
If you are looking for something healthy and nutritious, then this flaxseed meal sourdough sandwich bread is for you.
It is super soft, it stays fresh for long, and it is delicious for any kind of sandwiches.
Ingredients
Sourdough Starter
- 8g sourdough starter
- 40g water
- 40g bread flour
Dough
- 210 g water (60%)
- 25g honey(7%)
- 70g starter (20%)
- 0.5g yeast (optional to reduce sourness)
- 250g bread flour (72%)
- 50g whole wheat flour (14%)
- 50g flaxseed meal (14%)
- 8g salt (2%)
- 45g soft butter or oil (13%)
Directions
Day 1
Starter
- 10 pm add starter to the water and whisk together, add flour, mix well, cover loosely, let it sit at a room temp 74-78F for about 8-10 hours until starter reaches its peak (at least triples in volume).

Day 2
Dough
- Mix water, flour, honey, sourdough starter (70g on its peak, the rest use for future feedings), yeast( if you are using it), salt flaxseed meal and all flour.
- Mix the dough on low speed of your mixing machine for 3-5 minutes, or KitchenAid on speed 3 for 7-9 minutes until well incorporated.
- Add soft butter or oil, mix for 10-15 more minutes until the dough is well incorporated. It will look sticky at the beginning but eventually the dough has to come up together.






- Cover and let it proof for 2-4 hours at 78-84F/ 26-30C.
- During that time perform 2 stretches and folds.
- The dough should become puffy.


- Generously sprinkle work surface with whole wheat flour. Dump the dough.
- Shape as desired. I rolled it into a roll same length as a baking/loaf pan.



- Transfer the shaped loaf into the loaf pan.
- Cover the dough and let it proof for 2-4 hours at 78-84F/ 26-30C until it doubles in volume.


- Preheat oven to 375F.
- Bake for 35 min until golden brown.



Enjoy!

Flaxseed Meal Sourdough Sandwich Bread
1990kcal
Ingredients
The Sourdough Starter Levain (Night Before)
- 8 g Sourdough starter culture
- 40 g Water
- 40 g Bread flour
The Nutritious Main Dough
- 250 g Bread flour (72%)
- 50 g Whole wheat flour (14%)
- 50 g Flaxseed meal (14% – Finely ground flaxseeds)
- 210 g Water (60%)
- 70 g Active sourdough starter levain (20% – From the stage above)
- 25 g Honey (7%)
- 8 g Salt (2%)
- 45 g Soft butter or neutral baking oil (13%)
- 0.5 g Dry yeast (Optional helper pinch used strictly to cut down natural sourdough sourness)
Equipment
- Stand Mixer (Fitted with a dough hook attachment)
- Standard Loaf Pan (Ideally around 8.5 x 4.5 inches)
- Plastic Wrap or a damp kitchen towel
Method
Night Before – Starter Activation
- 10:00 PM: In a clean glass jar, add your 8g of starter culture to the 40g of water and whisk together cleanly. Add the 40g of bread flour and mix thoroughly.
- Cover loosely and let it sit at room temperature 74–78°F (23–26°C) overnight for 8 to 10 hours until the starter reaches its peak and at least triples in volume.
Day 2 – The High-Speed Enriched Mix & Bulk Folds
- In the bowl of your stand mixer, combine the 210g of water, 25g of honey, 70g of your active overnight peak starter, and the optional 0.5g of dry yeast.
- Dump the 250g of bread flour, 50g of whole wheat flour, 50g of flaxseed meal, and 8g of salt right over the liquids.
- Attach your dough hook attachment. Mix on the low speed of your machine for 3 to 5 minutes (or if using a KitchenAid mixer, run it on speed 3 for 7 to 9 minutes) until all the ingredients are fully incorporated and a cohesive ball forms.
- The Fat Incorporation: Add the 45g of completely softened butter (or oil) to the bowl. Increase your mixer speed to medium-high and knead continuously for an additional 10 to 15 minutes. Note: The dough will look notably slick and sticky when the fat first hits it, but be patient—it will steadily absorb the butter and pull away cleanly from the sides of the bowl.
- Cover the bowl and let the dough bulk ferment for 2 to 4 hours at a warm 78–84°F (26–30°C).
- Wet your hands and perform exactly 2 separate rounds of structural stretch-and-folds spread evenly across the first two hours of fermentation. Let the dough rest undisturbed for the remaining time until it looks lighter and beautifully puffy.
Clean Rolling, Final Proof, and Golden Bake
- Generously sprinkle your workspace with a dusting of whole wheat flour. Gently tip the puffy dough out of the bowl.
- Pat the dough down slightly, then roll it tightly away from you into a uniform, clean cylinder matching the exact length of your loaf pan.
- Grease your baking pan (or line it with parchment paper) and place the shaped log inside seam-side down.
- Cover loosely and let proof in a warm environment at 78–84°F (26–30°C) for 2 to 4 hours until the dough completely doubles in volume and proudly fills the pan.
- Preheat your oven to 375°F (190°C).
- Slide the pan onto the middle rack and bake at 375°F (190°C) for 35 minutes until the high crown turns a gorgeous golden brown. Let cool completely on a wire rack before slicing!
Nutrition
Calories1990kcalCarbohydrates283gProtein56gFat72gSaturated Fat6gPolyunsaturated Fat30gMonounsaturated Fat33gTrans Fat0.2gCholesterol12mgSodium598mgPotassium1013mgFiber26gSugar22gVitamin A22IUVitamin C1mgCalcium210mgIron8mg
Notes
- What Exactly is Flaxseed Meal: Flaxseed meal is simply a highly nutritious flour made from finely ground whole flaxseeds. Adding it straight into the dough mix introduces healthy fats and dietary fiber that help soften the wheat structure. This creates an incredibly tender, pillowy sandwich crumb that naturally holds onto its moisture and stays fresh on your counter for days.
- Why the Dough Appears Sticky Initially: Flaxseed meal absorbs water quite differently than standard wheat flour. When you first introduce the soft butter or oil in step 6, the dough will look loose and remarkably wet. Do not panic or toss extra flour into the bowl—keep your stand mixer running steadily on medium speed and the gluten network will safely organize, clearing the sides of the steel perfectly.
- Managing Cool Kitchen Proofing Windows: Whole grains and ground seeds make a dough matrix naturally heavier to lift. If your home kitchen runs a bit cool (below 74°F), the 2 to 4-hour pan proofing window in step 12 can easily lag. To keep it right on time, place your covered loaf pan inside an unheated oven with just the internal appliance light switched on to create a cozy, warm proofing box.
- Adjusting Fats for an Olive Oil Substitute: If you prefer to substitute the 45g of butter with high-quality olive oil, you can keep the weight exactly the same. Oil incorporates into the starch structures slightly faster than solid fats, so you may find your mechanical mixing time in step 6 drops down by a comfortable 3 to 4 minutes.
Tried this recipe?
Let us know how it was!Disclosure: As an Amazon Associate I earn from qualifying purchases.

Good day Natalya
Your recipe requires a 13 inch Pullman pan. I have a 9 inch Pullman. What percentage would I reduce your recipe so it’ll fit that size pan? Thanks and take care
Jeanette
Jeanette, hi!
I’m using
8.27*4.80*4.53 Inch
Just changed it in the post. Thank you 🙏
No electric mixer…do I need to knead or just do more folds?
Sorry…wrong email…sending again
More folds 🙏
Just out of the oven, looks okay!
Thank you ☺️
Enjoy 🙏
Dear natasha…what do mean by flaxseed meal? How to do that?
It’s like a flour made from flaxseeds
Natalya, if I want to make your loaf in a 13 inch Pullman would I increase all ingredients by 45% or some other percentage? Your 9 inch Pullman loaf yields 715g. Do you know how many grams of dough I’d need for the 13 inch pan? Any info would be appreciated. Thanks so much
I would increase the amount by 40-45%
Could you please add a print recipe function? Thanks!
Hi!
We are trying to go green. Sorry for inconvenience.
How do I adapt if I am kneading or folding by hand, without stand mixer? TX much!
My loaf doesn’t double in size on the second proof after letting it sit for over 4 hours. I am using olive oil in the recipe, should I use less than the 45 grams in the recipe? I’ve read that you should use 25% less olive oil than butter in a recipe. Do you think this will help? I love the health aspects of this recipe, thank you for sharing.
I made this loaf following your recipe as exact as possible and wow. What a DELICIOUS loaf!!! Thank you!!