Step 1

Preheat oven to 300 degrees F. Rinse the brisket and pat dry. Rub both sides of the meat with black pepper and kosher salt.

Step 2

Heat roasting pan over a medium flame on the stovetop. Drizzle a few tablespoons of olive oil into the pan. Brown the brisket on both sides—it will take about 4 minutes per side.

Step 3

Remove brisket from the pan. Drizzle a little more olive oil in the pan and add the diced onions, carrot slices and celery chunks. Sauté the vegetables for a few minutes, scraping up the brown bits on the bottom of the pan with your spatula.

Step 4

When onion is translucent and carrot slices are slightly caramelized, scoop vegetables out of the pan and place in a bowl. Pour beef broth into the bottom of your pan until covered. Scrape up any remaining brown bits on the bottom of the pan as the broth heats up.

Step 5

When broth is hot, add half your vegetables back into the pan spread out across the bottom. Place your brisket back into the pan, fatty side facing up. Place garlic cloves on top of the meat, evenly spaced. Add the remaining veggies to the pan, spreading them on top of the brisket to cover. Place herbs on top of the brisket and in the broth, evenly dispersed.Pour more broth into the pan until it goes halfway up the sides of your brisket. Cover roasting pan tightly with a layer of parchment paper, followed by a layer of foil, and place in the oven. If your roasting pan has a lid, use that instead of the parchment/foil combination.

Step 6

Let brisket roast undisturbed for 5 to 7 hours. It will take about 1 hour per pound of meat (leaner and grass fed cuts of meat may take longer—test for doneness). Brisket will shrink as it cooks. The meat is ready when it is fork tender and very easy to slice. Remove brisket from the pan. At this point you can follow make-ahead instructions below, if you wish. If you are serving right away, let it rest on the cutting board for 20-30 minutes before slicing.

Step 7

Meanwhile, strain pan drippings from the roasting pan into a saucepan and allow to cool. Reserve cooked vegetables.

Step 8

Skim fat from the surface of the pan drippings using a spoon.

Step 9

Reheat the remaining liquid on stovetop. Stir together the potato starch and 1 1/2 tbsp cold water, then pour into the cooking liquid. Bring liquid to a low simmer until it thickens to make a gravy-style sauce. You may need more of the potato starch and water mixture to thicken further; add slowly and simmer until desired thickness is achieved. Alternatively, you can blend the softened cooked vegetables (with herbs removed) into the gravy to thicken it using an immersion blender. Add salt and pepper to taste if needed.

Step 10

Cut fat cap off the brisket…

Step 11

then cut the brisket in thin slices against the grain.

Step 12

Serve topped with pan juices or thickened gravy, along with the softened veggies if you have reserved them. Garnish with fresh chopped parsley, if desired.To Make Ahead: After cooking the brisket, open the lid or foil and parchment to vent, then let the brisket slowly return to room temperature. Switch the brisket and sauce to a ceramic or glass dish. Cover with plastic wrap and place in the refrigerator.

Step 13

Let the brisket chill overnight, or up to two days. You can also freeze the brisket up to a week ahead if you prefer. 1-2 hours before serving, remove the brisket from the refrigerator and preheat your oven to 350 degrees F. The fat in the sauce will have risen to the top and solidified. Use a spoon to scoop the fat bits out of the sauce and discard.

Step 14

Take the brisket out of the dish and brush any excess sauce back into the dish. Place brisket on a cutting board, fat-side up. Slice the meat cold—first cut the fat cap off the brisket, then cut the brisket in thin slices against the grain.

Step 15

Return the sliced meat to the dish and spoon sauce over it, making sure to spoon a little sauce between each slice.

Step 16

Cover the dish with lid or layer of parchment and foil, then place in the oven. Let the brisket cook for 45-60 minutes until heated through. You can cook it even longer to let it become more tender, if you wish. Serve with thickened sauce and softened veggies, using the sauce thickening instructions above.