Sauté the finely chopped garlic and onion in half of the oil in a cast-iron pot until lightly colored. Stir in the flour until it is no longer visible and deglaze with the wine and broth. Add thyme and bay leaf along with the balsamic and tomato paste.
This is the sauce in which the vegetables will cook, taste and season with pepper and salt and check if the flavors are good. Cut the potatoes, unpeeled, into pieces of 3 to 4 cm. Peel the carrot and cut into diagonal slices. Peel the celeriac and cut into pieces. Peel the celery and cut into large strips. Add everything to the pot, stir and put the lid on, let simmer for 40 minutes, stirring regularly.
Slice the mushrooms and sauté them well in the remaining oil, add them to the stew in the last 5 minutes. Finish with finely chopped spring onion.
Serve with mashed potatoes.
Tips
No extra tips needed, Just Enjoy!