Preheat oven to 350 degrees F.
Season chuck roast liberally with kosher salt and freshly ground pepper. Heat duck fat in dutch oven and brown chuck thoroughly on all sides. Remove meat from pot and set aside.
Add all vegetables and garlic to remaining hot fat in pot and saute until tender. Add herbs and red wine scraping bottom of pot to remove all browned flavor bits from bottom. Reduce 10 minutes. Add veal stock. Paint chuck roast with tomato paste and add roast to braising liquid so that liquid reaches about halfway up the side of meat. (Add more stock if needed)
Cover and braise for 1 1/2 to 2 hours or until meat fork slides into meat easily.
Remove meat from hot pot, cool, cover and refrigerate for 24 hours. Strain braising liquid pushing it through strainer with back of spoon--reserving all possible liquid. Cool, cover and refrigerate for 24 hours. (Keep it separate from meat)
After 24 hours, remove meat and liquid from fridge. Remove fat from liquid and heat liquid in sauce pan until hot.
In small sauce pan, make a roux with 1 1/2 tablespoons flour and 1 1/2 tablespoons butter. Cook over low heat from 5 minutes. Add roux to hot liquid, stir and simmer for 2 to 3 minutes. This is your gravy.
Slice meat 1/2-inch thick and arrange slices in oven-proof dish. Moisten with some of the gravy, cover and heat until meat is hot enough to eat.
Serve with mashed potatoes or polenta and roasted seasonal root vegetables. Serve gravy on side.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.
Recipe courtesy of Jamie Bunnell, owner of Jamie's Bar & Grill in Sacramento, CA