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Sourdough sandwich loaf

Updated: Thu, 28 January, 2021

Sourdough that doesn't hurt the roof of your mouth, that doesn't erupt in shards when sliced into, that can be made into perfectly square sandwiches that fit into the lunchbox. That's my sourdough sandwich loaf.

Sourdough sandwich loaf

Sourdough-shaped sourdough

Sourdough usually comes in crusty, round or oblong rustic loaves. Sourdough sandwich – you expect two chunky horseshoe-shaped slabs of bread. Sourdough toast – the crust will poke painful holes in the roof of your mouth and the slice comes in a toaster-unfriendly shape again.

No more: I decided to put paid to the sourdough stereotypes. You CAN have a sourdough sarnie in a familiar, square shape; you can even cut the (tender, non-belligerent) crust off if you so desire.

pullman sourdough

Pullman-shaped sourdough

Pullman tin is simply a loaf tin with a lid that slides on. If you don't have one, you can fashion the same thing from foil-wrapped heavy baking sheet placed on top of a regular loaf pan.

Weighing it down with an ovenproof dish, perhaps filled with water if dish not heavy enough, should stop even the sprightliest dough from escaping. It needs to be contained, get square, get soft.

Pullman tin is specifically designed for square loaves and the enclosure guarantees soft crust. The most popular type of bread baked in Pullman is French pain de mie, crustless (almost) square loaf.

square sourdough sandwich pullman loaf

Sandwich loaf that tastes sensational

Sourdough baked in the Pullman is an unbelievably moist loaf. And sour: even more so if you grow your sour starter in summer. I was baking positively mouth-wrenching products last summer; the hottest this century so far.

But I’ll take a punt on you reading this in the distant future, when only I and Chad Robertson are left in the baking world, to reign supreme. Just hoping.

Back to the loaf: it’s moist, it’s tender, it’s extremely sliceable and even more toastable. Sourdough perfection? Sandwich perfection? Or I’m just full of myself? I guess the last is true.

sourdough square loaf

Made over three days is the best

It sounds a lot of work but actual hands-on activity there is little of. The evening of the first day the leaven is mixed, out of any mature sourdough starter recently refreshed. The second day sees mixing and stretching and folding - it's not strenuous though it keeps you at home.

On the other hand I've heard stories of sourdough afficionados driving to errands with a tub of dough on passenger's seat, to be S&F-ed every half an hour.

Day three, after the stretched and folded dough had fermented in the fridge overnight, is shaping and baking , i.e. proper fun. The best results will be achieved with this schedule.

At a push, the dough can stay in the fridge for 48 hours or the shaped loaf can wait in the tin till the next day, but not both, otherwise you risk overproof, slight gloopiness and low rise.

Sourdough sandwich loaf

Servings: one large sandwich loafTime: 72 hours
Rating: (1 reviews)


  • For the leaven:
  • 1 tbsp. sourdough Tartine starter
  • 200g warm water
  • 100g white bread flour
  • 100g whole meal flour
  • For the main dough:
  • 125g Tartine sourdough leaven
  • 350g warm water
  • 1 tbsp. honey
  • 400g white bread flour
  • 100g wholemeal flour
  • 10g fine salt
  • 25g warm water
  • butter, for the tin
  • extra wholemeal flour, for dusting


1. Prepare your sourdough starter as in Tartine country bread instruction. You can also use old starter that has been sitting in the fridge; it will happily revive.

2. The whole process happens over 3 days: making leaven on the night of day 1; working the dough on day 2; shaping the loaf and baking on day 3.

3. The night of day 1 prepare the leaven: discard all but 1 tbsp. of the starter. Mix it with 200g warm water until dispersed. Add the flour, stir it until combined and leave at room temperature for 12 hours. It should become bubbly and puffed up. To test if it’s ready, scoop a teaspoon of it and see if it floats in a bowl of water. If it sinks, let it mature longer.

sourdough starter

4. For the main dough, mix 125g of the leaven (the rest will become your starter for future baking and can live in the fridge) with 350g warm water in a large bowl; stir to disperse. Add the honey, the 400g white flour and the 100g wholemeal and mix to a rough dough with your hands or a dough whisk until there is no more dry flour visible. Cover the bowl with a damp tea towel and leave to rest for 25-40 minutes at room temperature.

5. Add the salt and the remaining 25g of warm water to the dough and mix with your hands, the dough whisk or in a standing mixer with a dough hook attachment until it smooths a little and starts pulling away from the sides of the bowl. Cover with the damp tea towel and leave in a warm place for 30 minutes.

6. For the next 3 hours stretch and fold the dough every 30 minutes, then return it to the warm place. To do that, wet your hands; grab the underside of the dough at one quadrant and stretch it up over the rest of the dough. Repeat this three more times, rotating bowl a quarter turn for each fold. Do this every half an hour, six times in total.

7. At the end of the session the dough should increase in volume 20 to 30 percent.

tartine bread dough

8. Cover the bowl with cling film and place in the fridge for up to 24 hours.

9. The next day take it out early, so it returns to room temperature; it will take a couple of hours.

10. When it gets warmer, scrape the dough onto a floured surface and divide it in half. One piece at a time, pull the dough to a rough rectangle and tightly roll it from the farthest long end towards you, Swiss roll-style, pinching the end of the dough to seal. Leave the pieces of dough on the work surface seam side up and cover loosely with a cloth or oiled cling film. Let it rest for 20 minutes.

shaping pullman bread

11. In the meantime prepare a 13” Pullman tin or a 13” ordinary loaf tin by buttering it thoroughly, including the lid. If you’re using an ordinary tin, butter a length of double layered aluminium foil to cover the loaf tin.

12. To form the loaf, place both pieces of dough 5mm away from each other on a floured work surface. Grasping one of the short ends with each hand, twist the dough in opposite directions to make an interlocked spiral.

shaping sandwich loaf

13. Slide both hands, palms upward, under the twisted dough and invert it, seam side down, into the prepared tin. If using the Pullman tin, slide the cover about 2/3 of the way across the top of the tin. If in an ordinary tin, place it in an inflated large plastic bag (just blow into it and tie the ends!). Let the loaf proof until it is about 1cm away from the top of the tin.

14. Set a rack in the lower third of the oven and preheat to 220C/425F/gas mark 7.

15. Once the dough has risen so that it is only 1cm away from the top of the tin, slide the Pullman cover closed or cover the ordinary tin tightly with the foil, buttered side inside. Place the tin in the oven. Bake for 30 minutes, then slide the lid off the Pullman or take off the foil; and continue for another 15 minutes.

sourdough sandwich bread

16. Remove the loaf from the oven and turn it onto a rack to cool.

Originally published: Mon, 1 October, 2018

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Your comments

Anna @ CuisineFiend
Hi Ian - thank you! In my experience the cover stops random bubbles erupting from the dough whilst in the oven but it's great if the lidless method works too. Compare the flavours by all means - but remember you'll need to be hungry in equal measures for a reliable outcome!
4 years ago
Ian Turner
Wow, thank you so much, so many videos on You tube, this is the simplest and best instruction I found. I now do this in just an evening and the next day, proof in the airing cupboard for only a couple of hours. I increased the quantities by 50% to fully fill the pullman tin and never use the cover while baking but reduce the temp after 20 mins. I think I need to try the overnight and compare flavours!
4 years ago
Anna @ CuisineFiend
Hi Bernie - you can do it all on the same day, just let the dough prove for an hour or two, until risen.
4 years ago
Bernie Lapointe
Do I have to wait a day in the fridge or can I just go from the folding to the forming, proofing and baking the same day? I started this in the morning.
4 years ago

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Hello! I'm Anna Gaze, the Cuisine Fiend. Welcome to my recipe collection.

I have lots of recipes for you to choose from: healthy or indulgent, easy or more challenging, quick or involved - but always tasty.


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