French
Heat the oven to 160C. Pat the beef dry, cut it into 5 cm cubes and season with salt and pepper.
In a large ovenproof casserole, fry the bacon over medium heat for 6-8 minutes, until browned, then lift it out and leave the fat in the pan.
Add 1 tbsp of the oil and brown the beef in batches over high heat, 5-6 minutes per batch, then set it aside with the bacon.
Lower the heat, cook the chopped onion and sliced carrots for 5 minutes, stir in the garlic and tomato paste for 1 minute, return the meat and bacon, sprinkle over the flour and stir for 2 minutes.
Pour in the wine and stock, add the thyme and bay leaves, bring to a simmer, cover and braise in the oven for 150-180 minutes, until the beef is very tender.
About 20 minutes before the end, brown the pearl onions and quartered mushrooms in a frying pan with the remaining 1 tbsp of oil for 8-10 minutes, then stir them into the casserole.
Remove the herbs, simmer the sauce on the stove for 10 minutes if it needs thickening, and adjust the seasoning before serving.