Pat the 8 veal cheeks dry and season with salt and pepper from the grinder.
Heat 2 tablespoons olive oil in a large roasting pan over medium-high heat.
Sear the veal cheeks until golden brown on both sides, about 4-5 minutes per side. Remove and set aside.
Cut the onions, carrots, and celeriac into large cubes.
In the same pan over medium-high heat, roast the vegetable cubes with 1 tablespoon tomato paste, stirring occasionally, for about 3-5 minutes.
Deglaze the pan with 400 ml dry red wine and 1 tablespoon sugar beet syrup, scraping up browned bits. Boil until reduced by about half, roughly 5-8 minutes.
Wash and dry 3 sprigs thyme and 3 sprigs rosemary. Add them to the pan along with 1 bay leaf and 8 juniper berries.
Pour in 500 ml veal or beef stock. Return the seared veal cheeks to the pan.
Cover and braise in the oven at 160°C / 320°F (convection, on the 2nd or 3rd rack from the bottom) for 2 to 2.5 hours. Every 30 minutes, baste the cheeks with some of the braising liquid.
Transfer the veal cheeks to a warm plate. Pour the braising liquid through a sieve into a saucepan, pressing the vegetables gently to extract liquid.
Over medium-high heat, reduce the sauce by about half, roughly 10-15 minutes.
Season to taste with salt and pepper from the grinder. Stir in 1 tablespoon Dijon mustard. Do not boil after adding mustard.
For best flavor, prepare this dish up to 1 day ahead; cool completely and refrigerate. The veal cheeks will rest and absorb more sauce flavor. They are typically very tender after 2.5 hours of braising.
The Boss Kitchen editorial staff oversees content review, fact-checking, and recipe verification across the site. Published articles pass through the editorial team before going live, ensuring ingredient lists, techniques, cooking times, and nutritional claims hold up in a home kitchen. The team coordinates contributions across the site writers, handles reader corrections, and maintains consistency in measurement conventions, safety guidance, and dietary labeling. Posts under this byline typically represent team-reviewed reference material, site announcements, or editorial roundups rather than individual-author features, and they are held to the same sourcing standards as bylined recipe and product coverage.