Step 1
Season the brisket with salt and black pepper. In a big heavy pot over medium-high warmth, add a drizzle of oil. When it’s sizzling and shimmering, add the brisket and cook dinner till browned on the underside, 4–5 minutes. Utilizing tongs, flip the brisket over, high with the onions, and proceed cooking till browned on the underside, 4–5 minutes extra. Unfold the onions over the underside of the pot and place the brisket on high. Add the ketchup and convey to a boil. Flip the warmth to low, cowl, and simmer, stirring sometimes, till an instant-read thermometer inserted into the brisket reads 140°F, about 1 hour and half-hour.
Step 2
Switch the brisket to a slicing board and lower into ¼-inch-thick slices. Return the slices to the pot over low warmth, cowl, and proceed cooking till the meat breaks aside simply when pierced with a fork, about 1 hour and half-hour extra.
Season the brisket with salt and black pepper. In a big heavy pot over medium-high warmth, add a drizzle of oil. When it’s sizzling and shimmering, add the brisket and cook dinner till browned on the underside, 4–5 minutes. Utilizing tongs, flip the brisket over, high with the onions, and proceed cooking till browned on the underside, 4–5 minutes extra. Unfold the onions over the underside of the pot and place the brisket on high. Add the ketchup and convey to a boil. Flip the warmth to low, cowl, and simmer, stirring sometimes, till an instant-read thermometer inserted into the brisket reads 140°F, about 1 hour and half-hour.
Switch the brisket to a slicing board and lower into ¼-inch-thick slices. Return the slices to the pot over low warmth, cowl, and proceed cooking till the meat breaks aside simply when pierced with a fork, about 1 hour and half-hour extra.
Switch the brisket to a deep platter, spoon the sauce excessive, and serve.
