Pretzel Knots with Brown Butter and Mustard Salt
chewy, burnished, and quietly improved by nutty butter
Pretzel Knots with Brown Butter and Mustard Salt
Ingredients
- 450 g (3½ cups) strong white bread flour
- 7 g (1 sachet) fast-action dried yeast
- 1 tsp fine salt
- 1 tbsp soft light brown sugar
- 250 ml (1 cup) warm water
- 2 tbsp unsalted butter, melted, for the dough
- 60 g (¼ cup) unsalted butter, for browning
- 1 tbsp wholegrain mustard
- 1½ tbsp flaky sea salt, for the mustard salt
- 1 tsp mustard powder
- 60 g (4 tbsp) bicarbonate of soda, for the bath
- 1.5 litres (6 cups) water, for the bath
- 1 egg, beaten, to glaze
Method
- Mix flour, yeast, salt and sugar, then add warm water and melted butter to form a dough. Knead 8 minutes until smooth and elastic.
- Cover and prove 1 hour until doubled.
- Brown the 60 g butter over medium heat until nutty and amber, then stir in the wholegrain mustard and set aside.
- Mix the flaky salt with the mustard powder to make the mustard salt.
- Divide dough into 12 pieces, roll each into a 30 cm rope and tie into a loose knot. Rest 10 minutes.
- Bring water and bicarbonate of soda to a rolling boil. Dip each knot for 30 seconds, turning once, and lift out to drain.
- Arrange on lined trays, brush with beaten egg and scatter generously with mustard salt.
- Bake at 220°C (200°C fan) for 13–15 minutes until deep mahogany.
- Brush the hot knots with the brown butter and mustard mixture. Serve warm.
There is a particular noise a good pretzel makes when you bite into it, a soft crackle of burnished crust giving way to dense, chewy crumb, and I have spent more weekends than I will admit chasing it. Most home pretzels fall down in two places: they go pale and bready instead of deeply lacquered, and they taste of nothing but salt. These pretzel knots fix both. The bicarbonate bath gives them that proper bronzed shell, and a slick of brown butter brushed on hot turns the whole thing nutty and savoury in a way a plain pretzel can only dream of.
1 Why knots, not pretzels
I tie mine into knots rather than the classic looped shape for the simple reason that knots are far quicker to form and almost impossible to get wrong. You roll a rope, tie it like a shoelace, tuck the ends, done. They also bake into lovely fat little parcels with a high crust-to-crumb ratio, which is exactly what you want when the crust is the best part. If you are a purist and want the heraldic twist, by all means do, but on a Tuesday night the knot wins every time.
2 The dark secret of the alkaline bath
The thing that separates a real pretzel from a bread roll wearing salt is the alkaline bath. Traditional Bavarian bakers use food-grade lye, which is gloriously effective and also mildly terrifying. At home I use bicarbonate of soda dissolved in boiling water, which is safe, cheap, and gets you most of the way there. The alkaline solution changes how the surface browns in the oven, giving that deep mahogany colour and the unmistakable pretzel flavour.
A few honest notes. Use a generous amount of bicarb, keep the water at a proper rolling boil, and only dip each knot for around thirty seconds. Longer and they go slimy; shorter and they stay pale. Lift them out with a slotted spoon, let them drain, and handle them gently, because they will be a little tacky on the surface. That tackiness is good. It is what grips the salt.
3 The twist: brown butter and mustard salt
Here is where these stop being merely good and start being the ones people ask you to make again. Two small moves, both built on the same flavour.
First, the mustard salt. I mix flaky sea salt with a little mustard powder and scatter it over the egg-glazed knots before baking. As they cook, the mustard mellows into a warm, peppery hum that plays beautifully against the dark crust. It is the same trick you would use on a good pork chop, redirected onto bread.
Second, and this is the real magic, brown butter stirred through with wholegrain mustard, brushed over the knots the moment they come out of the oven. Browning butter is the easiest upgrade in cooking: you melt it, keep it going until the milk solids turn golden and it smells of toasted hazelnuts, and suddenly it tastes three times as expensive. Combined with the grainy mustard and painted onto hot pretzels, it soaks just into the surface and makes every bite taste richly of buttered savouriness. Strong opinions about garlic are my usual department, but here I leave it out on purpose, because the brown butter and mustard want a clear stage.
4 Getting them right
Prove the dough properly until it has genuinely doubled; under-proved pretzels stay tight and tough. Roll your ropes evenly so the knots bake at the same rate. And do not skimp on oven temperature, because pretzels want a hot, fast bake to set that crust before the inside dries out.
They are at their absolute peak within an hour of baking, still slightly warm, the brown butter just set. Cold, they are still very good with a bit of cheese, and they reheat happily for a few minutes in a hot oven to bring the crust back. If you want to get ahead, you can shape and bath them, then keep them in the fridge for a couple of hours before baking, which actually deepens the flavour. Just bring them back to room temperature before they go in. I like them with a sharp cheddar and a cold beer, or torn open and stuffed with ham and more mustard, because apparently I cannot be stopped. Make a double batch. They vanish.
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