Why French Bistro Technique Is the Best Toolkit for Plant Cooking

There is a story we tell about French cooking that gets the technique wrong, and the wrongness is exactly why nobody uses the toolkit for plants.

The story goes like this: French cuisine is about meat. The béarnaise sauce is built for the steak. The bourguignon is the beef. The cassoulet is the duck and the pork and the sausage. The Wellington is the tenderloin. The demi-glace is veal bones reduced over a day and a half. The story is repeated so often, in so many cooking schools, that even chefs who have stood at a French stove for ten years still believe it. They believe the technique is downstream of the protein. That if you remove the meat, the technique collapses with it.

It does not.

I trained in Lyon between 2010 and 2014, and again at bistros in Paris through those same years, and then a final year in Paris in 2024 working garde-manger at Le 110 de Taillevent. In every kitchen I worked in, the French technique I was being drilled on had nothing to do with the animal on the cutting board. It had to do with what happened on the heat. Reductions. Emulsions. Braises. Croûtes. Liaisons. The vocabulary was about structure — what you do to a liquid, what you do to a fat, what you do to a piece of flesh that has to soften or crisp or set. The protein was incidental. The protein was just what was in the walk-in that morning.

This is the thing nobody says: French bistro technique is, in fact, the deepest plant-cooking toolkit ever assembled. Three hundred years of trial-and-error on how to coax flavor out of liquid, how to make fat behave, how to build a sauce that holds, how to layer textures inside a pastry, how to take a hard thing and make it tender, how to take a soft thing and make it crackle. The technique was written down in Le Guide Culinaire by Escoffier in 1903 and codified in every culinary school since. It is sitting there. Waiting to be used. And almost nobody in the plant-cooking world is reaching for it, because we are still telling ourselves the story that French food is about meat.

Let me argue this with five techniques, and what each one does for a plant.

Reduction. A reduction is a liquid cooked down until it concentrates — until what was a watery broth becomes a sticky, glossy, intensified version of itself. Classical French cooking uses reductions for everything. Wine reductions, stock reductions, vinegar reductions, cream reductions. A reduction is what turns a thin sauce into a sauce that coats the back of a spoon. The dish I make most often that uses this is a mushroom bourguignon — red wine, shallots, thyme, a long slow reduction until the wine loses its sharpness and gains depth, then folded around king oysters that have been seared the way you would sear a beef cheek. The reduction is what makes the dish a bourguignon. The mushroom is what’s inside the bourguignon. The order of operations is identical to the meat version, because the technique was never about the meat. It was about the liquid.

Emulsion. An emulsion is two liquids that don’t want to mix — usually oil and an acid or oil and water — held in suspension by an emulsifier. The French built emulsion technique into the spine of bistro cooking: vinaigrette, mayonnaise, hollandaise, béarnaise, beurre blanc, beurre monté. Every one of these works on plants without modification. A mustard vinaigrette is a mustard vinaigrette. The mustard is the emulsifier. The oil is the oil. The vinegar is the vinegar. There is no animal product anywhere near the canonical vinaigrette. The aioli I make for the milanesa is a cashew-based emulsion that follows the same logic as the egg-yolk version — a fat (cashews, blended to cream), an acid (lemon, dijon), a flavor base (garlic, capers), held in suspension by the protein in the cashew and the lecithin in the mustard. The technique is identical. The emulsifier is what changed.

Braise. A braise is a slow, low cook with a small amount of liquid in a closed vessel, until something hard becomes something soft. The French built the cassoulet on this. The Languedoc estate kitchen where I cooked a season in 2022 made cassoulet for eighty people at a time, in glazed terra-cotta cassoles the size of a small drum, with Tarbais beans braised for nine hours until they collapsed into the fat-rich crust on top. The technique is the braise. The protein in the meat version was duck and pork. The protein in my version is the bean itself — Tarbais beans contain about twenty grams of protein per dry cup, the same range as pulled chicken — and the slow braise transforms them the same way it transforms shoulder meat. The crust forms the same way. The cassole heats the same way. The dish is the dish.

Croûte. A croûte is a pastry shell built around something. The Wellington is the famous version — beef tenderloin, mushroom duxelles, prosciutto, puff pastry. I worked a London Mayfair restaurant in 2023 and made twenty-two Wellingtons a service. When I rebuilt the dish for my kitchen in Washington, the technique never moved. Sear the center protein until the surface is hard enough to hold against the pastry. Build the duxelles — finely chopped mushrooms, sweated down until they release every drop of water, then reduced again with sherry and thyme until they’re a paste you could spread on bread. Wrap. Chill. Bake at 425°F until the pastry shatters when you cut it. The Wellington I make uses king oyster mushrooms as the center, dry-cured in salt for four hours and then seared in a cast iron pan. The duxelles is duxelles. The pastry is pastry. The cut is the cut.

Demi-glace. A demi-glace is the heaviest weapon in the French sauce arsenal — a stock reduced until it’s almost a paste, with the lacquered depth that gives bistro food its bottom. Classical demi-glace uses veal bones simmered for thirty-six hours. The plant version I make uses roasted shiitake stems, dried porcini, a slow-roasted onion, kombu, and a splash of soy sauce — the umami stack — simmered for eight hours and then reduced for another two until what’s left is dark and sticky and has the gloss of a real demi. The structural role is identical. You put a tablespoon of it into any sauce and the sauce gets serious. The roundness, the depth, the lacquered finish. I keep a jar of it in the freezer the way a French chef keeps the demi in the walk-in.

Five techniques. Five dishes. Not a single one of them needed meat to work. Every single one of them needed structure. The structure is the French gift to cooking. The structure is what nobody is using.

There is a reason I am writing this down. I read plant-cooking books and the technique register is almost always wrong. The recipes either lean entirely on raw-vegan logic — soak cashews, blend, present — or they lean on the imitation register, where the goal is to make a soft thing taste vaguely like a meat thing, with smoke and salt and seitan. Both registers leave the French toolkit on the shelf. Both registers produce food that tastes flat next to what a French bistro line cook could produce on a Tuesday with a single shallot, a knob of butter, a glass of wine, and forty minutes.

The plant-cooking world is so busy looking for new tricks that it is missing the oldest tricks in the room.

A reduction is free. An emulsion is free. A braise is free. A croûte is free. A demi-glace takes time but nothing else. None of these require special ingredients. None of them require a label. None of them require an apology. They require a stove, a pan, attention, and the willingness to taste twice before serving.

If you are cooking with plants and your food is not landing, the question is almost never the ingredient. The question is the technique. The reduction was not long enough. The emulsion broke because the oil went in too fast. The braise was at too high a heat and the bean walls split before the inside cooked. The croûte was rolled too thin and the pastry burned before the center warmed. The demi-glace was rushed.

The French bistro tradition has the answer to every one of these problems, written down, public domain, sitting in every used bookstore on a Sunday afternoon for nine dollars. Use it. The toolkit was always meant for the technique. The meat was just what they had.

Now you have plants. The toolkit still works.

— Alexandre Teulade Washington, D.C.