The last few months I've been developing a high-hydration sourdough bread recipe and after my 10th loaf I thought I had it dialed in. I was going to post my results but then my mom sent me a recipe out of the blue and it was even better.
I've been looking for a recipe that would produce bread with a good crumb. To develop a good crumb you can make your dough extra wet but wet dough is difficult to handle or form into anything other than a puddle. Bread baking enthusiasts compete for who can work with the wettest dough and they show off pictures of slices containing holes so large it's practically just crust. I wasn't aiming for anything so dramatic or labor intensive but I wanted to have a recipe for holy bread.
Another goal of this experimentation was to figure out a good set of ingredient ratios: percentages which could be used to make any amount of bread. Here's what I settled on after 10 loaves:
To use this start by weighing your flour and multiply by the percentage for the other ingredients. I made loaves with 400g of flour. This works out to:
100% hydration starter just means starter that's fed with a 50/50 ratio of flour and water (100g flour with 100g water).
Using percentages you can scale up your breadmaking to any size and I've used this successfully to make a nut bread that had ingredients but no measurements.
My first few loaves were too wet to hold any shape in the oven and filled the bottom of my dutch oven like a pool of liquid. I started with 70% water and gradually worked my way down to 63% as I looked for a dough that was semi-wet and still strong enough to hold it's shape.
There's some technique to developing the gluten. With really wet dough you're working with a bowl of sticky soup. My technique has been to use a silicon scraper and to avoid touching it with my bare skin. A few experiments suggested you shouldn't use oil or water on your hands because it only makes the surface stickier.
I use the stretch and fold method; lifting the dough, stretching it and then plopping it back down on the heap. I settled on stretching and folding it from four sides four times with a 45min rest in (but keep reading - this is probably overkill).
After several stretch and folds the dough starts to inflate and take on a plastic sheen and stretching it causes it to tighten up, turning from soup to something you can form into a gelatinous loaf. The problem is if you let it sit it will return to soup so I settled on baking it shortly after one last gentle stretch and fold meant to preserve as much captured air as possible.
You need to bake on a pizza stone at high heat. I'm baking these 400g loaves at 450 for 26min on a pre-heated cast iron pizza 'stone'.
You also want to add steam to your oven to make the crust turn brown and get crunchy. I usually brush water onto the loaf before putting it into the oven and squirt water onto the stone a few times during the bake. Some bakers use a dutch oven or a contraption with upside down cookie pans and trays of water.
You can tell when it's getting close to being finished when the edges along the bottom begin to lift a few millimeters as it inflates like a balloon.
Incidentally, during this research I found a nice ebook on sour dough. found on github
The results, even the failures, are delicious so there's no harm trying it in your own kitchen. I thought I had the technique down and was going to end this post here but then sent me a recipe in the mail.
My mom mailed me a recipe printed from the king arthur flour website which was sent in to them by bread enthusiast Maura Brickman called Pain de Campagne I was intrigued when I saw it made use of a miniscule amount of unfed sourdough but it was only after I started assembling ingredients that I realized it was 80% water and the recipe was written to minimize the amount of fuss.
Here is the recipe (modified slightly by me) for a simple loaf of white bread:
Sure it takes 24hours before you can bake it but you only have to fuss over the dough for a few minutes. Doing the second rise in the fridge keeps the dough firm and makes it hold it's shape better when you transfer it to the pizza stone. I suspect the cold surface also helps it form a better crust and preserves the shape until the outer crust has baked.
My first loaf had a fantastic crumb, better than all of my ten careful experiments before, and it was noticeably heavy with moisture. That night I wondered if the quality of that first loaf had been a fluke. When baking bread you sometimes get lucky and a fantastic loaf appears and I was itching to bake another but we already had enough bread in the house and so it had to wait.
The second loaf turned out just as good and now I think I'm going to adopt this method for most of my sourdough. I moved my starter from the gigantic glass jar in my fridge to a much smaller plastic container and I've started to adapt my recipes to use a little more water and a little less starter.
Here's a recipe that uses this technique. I followed the percentages and process from my mom's discovered recipe but used it to make medieval walnut bread.
This recipe was found in a 14th century Venetian cookbook called the Anonimo Veneziano. It's a savory bread recipe which uses herbs I happen to have growing on our patio and in my cupboard. The recipe didn't have any measurements but it doesn't matter. We have the percentages to make as much as we want. I documented the process as I went.
Mix everything together until it just starts to come together. Don't bother trying to condition the gluten. Cover and set aside.
The dough will get noticeably tighter with each stretch and fold.
Finally cover and let sit for 12 hours or overnight. I started this early in the morning so that the next long rest would happen overnight and I could bake the following morning.
After 12 hours turn the soupy dough out onto a floured surface and gather it into a boule for the second rise. Put this seam side up into a banneton, sprinkle with flour in case it rises out of the bowl, put the banneton into a plastic bag, and put everything into the fridge for 12+ hours.
I'd meant to bake in the morning but I was unusually busy with work and it didn't happen until 4 in the afternoon. This is fine. By the time I got to it the dough hadn't risen as much as the other two times but I hadn't expected much because of all the nuts.
It's a lot easier to score the surface of the dough straight out the fridge. I wasn't sure this was going to accomplish anything because it was still pretty dense but it sort of worked out.
I brushed the loaf with water and slid it onto the pre-heated stone.
The loaf didn't inflate as much as I'd have liked but the crumb was pretty good for a dense nut bread and it was delicious. This is the second time time I've made this recipe and I think it's going into my little book. We ate half of the loaf in a couple days and the only reason we didn't continue was because I put the other half in the back of the freezer for later.
The loaf smells fantastic when rising, baking, and baked, and it tastes pretty good too. If you've got the ingredients give it a shot. Otherwise if you've got some flour and can raise or borrow some sour dough starter, try the plain white bread. It's works well and isn't labor intensive.