Why Sourdough Is Worth the Wait

There is something quietly magical about sourdough. A bag of flour, some water and a bit of patience can produce a loaf with a crackling crust and a tangy, open crumb that no supermarket bread quite matches. It also happens to be one of the most forgiving things you can bake, once you understand what the dough is doing. You do not need a proving basket, a cast-iron pot or a stand mixer to begin. A mixing bowl, a tea towel and your own two hands will take you a very long way.

This guide walks you through the whole process: building a starter, mixing a simple dough, shaping it and baking it in an ordinary oven. Treat the timings as guidelines rather than rules, because your kitchen, your flour and the weather all have opinions.

Building a Starter From Scratch

A starter is simply flour and water left to ferment, capturing wild yeasts from the air and the flour itself. It becomes your raising agent, and looking after it is the heart of sourdough baking.

• Day one: mix 50g of strong white flour with 50g of lukewarm water in a clean jar. Stir well, cover loosely and leave at room temperature.
• Days two to seven: each day, discard half the mixture and feed it with another 50g of flour and 50g of water.
• What to expect: it may smell odd at first, then develop a pleasant yoghurt-like tang. By day five to seven it should double in size within six hours of feeding, full of bubbles.

If you bake only occasionally, keep the starter in the fridge and feed it once a week. Bring it back to room temperature and feed it twice before baking. A starter that has been neglected will develop a dark liquid on top; simply pour it off, feed, and carry on.

Mixing Your First Dough

For one medium loaf you will need 500g of strong white flour, 350g of water, 100g of active starter and 10g of fine salt. If you would like a little wholemeal character, swap 100g of the white flour for wholemeal.

Combine the flour and water first and leave it for 30 minutes. This rest, known as an autolyse, hydrates the flour and makes the dough far easier to handle. Then add the starter and salt, squishing everything together with your fingers until no dry patches remain. The dough will feel shaggy and sticky at this stage, and that is exactly right.

Building Strength Without Kneading

Instead of kneading for ten minutes, you will stretch and fold the dough a few times over the first couple of hours. This develops the gluten gently and keeps the crumb open.

• Wet your hand, lift one side of the dough, stretch it upwards and fold it over the middle.
• Turn the bowl a quarter and repeat, working your way around.
• Do this every 30 minutes, four times in total.

After the folds, cover the bowl and leave it to rise at room temperature until it has grown by around 50 per cent. In a warm kitchen this might take three hours; in a cold one, five or more. Watch the dough rather than the clock.

Shaping and the Final Rise

Turn the dough onto a lightly floured surface. Flour the top, then flip it over so the floured side faces down. Pull the edges towards the centre to form a rough ball, then leave it to rest for 20 minutes. Now shape it properly: fold the dough over itself a few times to create tension across the top, then cup your hands around it and drag it gently towards you until the surface tightens.

Place the shaped loaf, seam side up, in a bowl lined with a well-floured tea towel. Cover and leave it to prove for one to two hours at room temperature, or overnight in the fridge for a deeper flavour. It is ready when a light press springs back slowly and leaves a faint dent.

Baking a Crusty Loaf at Home

Preheat your oven to 230C fan or 250C conventional, with a heavy baking tray or a lidded pot inside. Steam is what gives sourdough its shine and crackle, so place a small roasting tin of boiling water on the lower shelf just before baking.

Turn the loaf onto baking paper, score the top with a sharp knife or blade in one confident slash, and slide it into the oven. Bake for 20 minutes with steam, then reduce the heat to 200C and bake for another 20 to 25 minutes until deep golden brown. If you have a lidded pot, use it for the first 20 minutes and remove the lid for the rest.

The loaf is done when it sounds hollow underneath and the crust is properly dark. Cool it completely on a wire rack before slicing, tempting as it is to dive straight in. The crumb finishes setting as it cools, and a warm loaf will taste gummy no matter how well you baked it.