Every baker has their own method, and with practice you’ll eventually develop your own routine.

Start with a small amount of sourdough starter. (They can be made from scratch, purchased, or if you’re lucky, someone will share a portion of their starter with you.) Starters are meant to be shared, so find someone with an existing one who’s ready to

share a small amount (approximately 25 to 50 grams).

Store the starter in your fridge in a plastic container or jar. Two nights before making your dough, take it out of your fridge and place it on your counter.

(I like to start the first feeding Tuesday night, in order to have them fresh for Shabbos.)

Remove the jar from your fridge and discard about half of your starter. Replenish what’s left in your jar with 30 grams flour and 30 grams warm water.

Mix it gently with a fork and cover it loosely with lid slightly opened. Wrap it with a cloth or dish towel (so it has the air to rise).

Let it rise at room temperature. (I place it near the percolator) until bubbly and double the amount.

(Approximately eight to 10 hours after your first feeding. I do it the following morning/ Wednesday morning.)

Repeat the

same feeding as above. Let it rise until the next feeding.

(At night/Wednesday night)

Repeat the same feeding as above.

Let it rise until the next feeding.

(The following morning/ Thursday morning.)

Transfer your starter to a larger container

or jar. (I use an 86-ounce container.) Now you can feed it with 350 grams high quality flour and 350 grams warm water. (If

you have extra starter, you can keep it for future use.)

Mix it very well with a fork or spatula Cover the jar/container with its lid slightly opened and wrap it with a cloth or dish towel.

Let it rise (in a warm place) until

the culture is full of bubbles and its consistency resembles a spongy and fluffy texture (approximately six hours).

I recommend using the starter at

its peak, before it falls back down.

Place six pounds flour and 55 grams salt in the Bosch mixer (with the dough hook) and mix it.

Measure on a kitchen scale 1,512 grams of warm water and add it to the mixer.

Now add 650 grams bubbly, active starter and mix the dough well.

The texture of the dough will feel rough and shaggy, which is normal.

After the dough is mixed, it’ll need to rest. Resting is a repeated step throughout sourdough baking. Each rest serves a significant purpose. The flour needs time to absorb the water, which jump-starts the gluten development without kneading. It also makes the dough more soft and manageable.

Leave the dough in the mixer covered and let the dough rest for approximately a half hour.

In the meantime, take the extra portion of starter and store it in the fridge for future use (approximately 50 grams).

Once the dough has completed the first rest, turn the mixer on for one more quick mix.

When done kneading, divide the dough in four portions of 1,050 grams for large Challah or sourdough. The rest of the dough you can use for bilkelech (rolls).

Stretch and fold each dough separately (see below) and place each dough in a slightly oiled bowl. (I use the silver metal bowl.)

Cover each with a plastic and a towel. Place the dough in a warm spot in the kitchen.

Let it rise for another half hour and do another stretch and fold.

How to stretch and fold: Grab a portion of the dough, stretch it

upward and fold it inwards towards the center. Turn the bowl clockwise and repeat stretching and folding until you feel the dough has stiffened.

Flip the dough over, cover and let it rest until the next stretch and fold.

Repeat this process approximately three times, every half hour.

After repeating the stretch and fold process, let each dough rise (covered) for four hours.

The dough is ready when it’s increased in size, puffy, and no longer dense, with plenty of bubbles to show aeration.

After the bulk rise you should take challah. Gather all the bowls, cover with a towel and do hafrashat challah (read more on hafrashat challah here).

After the bulk rise, the dough is ready to be shaped on your work surface! Gently coax each dough out of the bowl onto a slightly floured surface.

Shape the dough by pinching all sides into the center.

Flip the dough over and gently cup the dough to tighten the circle shape.

The goal is to redistribute the weight of the dough to all sides and create a tight skin on the surface for a more uniformed rise.

Once shaped, the dough should be

placed in a lined proofing basket, seam side up. (Sprinkle a small amount of flour on the basket before placing the dough).

Cover with a plastic shower cap or food plastic wrap. Let it rise for another two to three hours.

Place it in the fridge overnight.

(The following morning/ Friday morning.) Scoring the dough creates a beautiful design. You can score your dough according to your liking.

Sprinkle some corn meal on the top of the dough and invert the dough onto a piece of Gefen Parchment Paper.

Now, score the dough. Scoring or slashing the dough (with a sharp knife or razor blade) prior to baking, allows steam to escape and controls the direction

in which the bread opens up. It also enhances the beauty of the bread.

Transfer the dough with the parchment paper into a five-quart Dutch oven.

Preheat oven to 500 degrees Fahrenheit.

Bake for 20 minutes with cover.

Lower the temperature to 450 degrees Fahrenheit.

Bake for another 15 minutes.

Remove the cover and bake for an additional 10 minutes.

Remove the dough from the Dutch oven. You can crisp it in the oven for another few minutes (according to your preference).