This elegant vegetarian twist on the classic French beef stew features tender mushrooms braised in a rich, burgundy wine sauce with pearl onions, carrots, and aromatic herbs. A sophisticated yet comforting dish that proves mushrooms can be just as satisfying and luxurious as meat in this timeless Provençal recipe.
1PREPARE THE MUSHROOMS: Gently clean the mixed mushrooms with a damp cloth or soft brush to remove any dirt, avoiding water which makes them soggy. Quarter the larger mushrooms and halve the smaller cremini mushrooms, keeping them in roughly similar-sized pieces so they cook evenly. Leave whole any small button mushrooms. Set aside on a clean kitchen towel.
2BLANCH THE PEARL ONIONS: Bring a pot of salted water to a rolling boil and add the pearl onions for 2-3 minutes just until their outer skins soften slightly. Transfer immediately to an ice bath to stop the cooking process. Once cooled, peel away the papery outer skin—the root end should slip out easily, leaving the tender white flesh intact. This step prevents the onions from falling apart during the long braise.
3PREPARE AROMATICS AND BROWN THE MUSHROOMS: Heat 2 tablespoons of olive oil in a large, heavy-bottomed Dutch oven or braising pot over medium-high heat until it shimmers. Working in batches to avoid crowding the pan, add the mushrooms and sear for 4-5 minutes per side until they develop a rich golden-brown crust and release their moisture. This browning develops deep, savory flavors essential to the dish. Transfer browned mushrooms to a plate and set aside.
4BUILD THE SAUCE BASE: In the same pot with the remaining oil, add the minced garlic and cook for 30 seconds until fragrant, then stir in the tomato paste and cook for 1 minute to caramelize slightly. Dust with flour and stir constantly for 2 minutes to create a roux that will thicken the sauce. Pour in the burgundy wine slowly while stirring to avoid lumps, scraping up all the browned bits from the bottom of the pot—these contain concentrated flavor.
5COMBINE AND BRAISE: Return the mushrooms to the pot along with the peeled pearl onions. Add the vegetable stock, bay leaves, and fresh thyme sprigs. Bring the liquid to a gentle simmer, then reduce heat to low and cover with a lid, leaving it slightly ajar. Braise for 60-75 minutes, stirring occasionally, until the mushrooms are completely tender and the sauce has reduced and thickened to a glossy consistency coating the back of a spoon. The alcohol should have cooked off, leaving only the rich wine flavor.
6FINISH THE DISH: Cut the carrots into 5-cm batons and add them 30 minutes before the end of cooking so they become tender but retain slight texture. Taste the finished bourguignon and season with sea salt and freshly cracked black pepper as needed. Remove the bay leaves and thyme sprigs. For a more refined presentation, you can strain the sauce through a fine mesh and return it to the pot with the mushrooms and vegetables, discarding any sediment. Serve immediately in deep bowls with crusty bread, creamy mashed potatoes, or egg noodles to soak up the magnificent sauce.