Twenty seconds a side in a rolling boil of water and baking soda — that’s the entire technical trick separating a plain twisted breadstick from something that actually tastes like it came from a real bakery counter, and it takes far less effort than you’d guess. For years I made pretzels the standard way, letting packaged yeast do all the heavy lifting, before it occurred to me to work sourdough discard into the dough. That first discard batch caught me off guard: the faint tang running under the malty, salted crust reads much closer to a genuine German-style pretzel than the soft mall-food version most of us grew up snacking on. Don’t expect a marathon sourdough schedule here, either — this whole thing comes together in an afternoon, since the discard’s real job is flavor and texture, not lift.

What That Baking Soda Dip Is Really Doing

That deep mahogany shell and the unmistakable pretzel flavor both trace back to a single move: a brief dunk in a baking soda and water bath right before the oven. The alkalinity rewrites the surface chemistry of the dough, so it browns hard and fast under heat, leaving you with a glossy, slightly chewy skin instead of something closer to a soft dinner roll. Leave this step out, and what you’ve baked is just a fancy bread twist.

Dough Ingredients

100g sourdough discard
7g instant yeast (this delivers a same-day rise — the discard is there for flavor and structure, not leavening)
300g warm water
500g all-purpose flour
10g salt
15g brown sugar
30g melted butter

What You’ll Need for the Bath

2 liters water
120g baking soda
Coarse pretzel salt or flaky sea salt, for finishing

The Method, Start to Finish

Combine and knead. Bring together the discard, yeast, warm water, flour, salt, sugar, and melted butter. Knead for 8-10 minutes until the dough turns smooth and elastic — expect it to feel firmer than a standard bread dough, more in line with a bagel dough.
Let it rise once. Cover and set aside at room temperature for an hour, until it’s clearly puffed up (it won’t reach a full double — that’s just how this stiffer dough behaves).
Portion, roll, and twist. Split the dough into 8 even pieces. Roll each into a rope roughly 20 inches long, then form the familiar pretzel shape: bend it into a U, cross the two ends over each other twice, and fold the twisted portion down onto the bottom of the U, pressing to seal.
Let them rest uncovered. Leave the shaped pretzels sitting out on the counter, uncovered, for 15-20 minutes. That light surface drying is what allows the baking soda bath to grip properly.
Give them the bath. Bring the water and baking soda to a gentle boil in a wide pot. Using a slotted spoon or spider, dip each pretzel for 20-30 seconds per side, then set it on a parchment-lined baking sheet.
Salt and bake. While the surface is still wet, sprinkle on coarse salt right away so it stays put, then cut a shallow slash across the thick bottom knot with a sharp knife. Bake at 425°F (220°C) for 14-16 minutes, until the crust is deeply colored.
Let them cool a touch before digging in. These are best enjoyed warm, ideally within an hour of baking, with a brush of melted butter applied straight off the tray.

Where This Recipe Tends to Go Wrong

Pretzels turning out pale and lifeless. Nine times out of ten, that comes down to a weak bath. Stick to the baking soda amount listed above rather than going light on it, and confirm the water is truly boiling — not just hot — the moment you dip each pretzel.

Pretzels spreading out flat while in the bath. Dough that’s too soft or hasn’t proofed enough will lose its shape once it hits the alkaline water. Keep your dough on the firmer end, and don’t shortchange the 15-20 minute uncovered rest before the bath.

Tools That Help You Get Consistent Results

These need to come off a rack immediately after baking or the bottoms steam and go soft from trapped moisture — a sturdy wire cooling rack solves that instantly. For the bath-and-bake step, good parchment paper keeps the wet, salted dough from sticking to the sheet pan, which matters more here than in almost any other bake on this site.

Other Shapes Worth Trying

This exact dough also turns into terrific pretzel bites — simply slice the ropes into 1-inch segments before the bath rather than twisting them into full pretzels. Doing that trims the bake time to around 10 minutes and gives you a much quicker snack for a weeknight or game-day spread.

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