About 10 hr, mostly hands-off (plus an overnight dry brine) · 8 to 10 people
Photo: Johnsparks75 (CC BY-SA 4.0) via Wikimedia Commons · source
Real Texas brisket is post-oak smoke for 12 hours. At home, a covered grill with wood chunks or even your oven gets you the salt-and-pepper bark and the jiggly, rendered fat. The secret is low heat and a long rest.
1 whole packer brisket, 5 to 6 kg (11 to 13 lb), or a 2.5 kg (5 lb) flat with its fat cap
3 tbsp coarse kosher salt
3 tbsp coarsely ground black pepper (16 mesh if you can)
1 tsp garlic powder (optional)
For the oven method: 1 tbsp smoked paprika and 1 tsp liquid smoke (optional)
Butcher paper or foil for wrapping
To serve: white bread, pickles, sliced onion
How to make it
Trim and season (20 min, the night before): Trim the hard fat to about 6 mm (1/4 in) and round off thin edges so they don't burn. Mix the salt, pepper and garlic powder and coat the brisket all over. Refrigerate uncovered overnight.
Cook low (6 to 8 hr): Smoker or covered grill: hold 120 to 135°C (250 to 275°F) with oak or hickory chunks, fat side up, the point toward the heat. Oven: heat to 135°C (275°F), add the paprika to the rub, put the brisket on a rack over a sheet pan with 2 cups of water in the pan. Cook until the bark is dark and set and the inside reads 74 to 77°C (165 to 170°F), usually 5 to 7 hours.
Wrap and finish (2 to 3 hr): Wrap tightly in butcher paper (or foil), put it back, and cook until it reads 93 to 96°C (200 to 205°F) in the thickest part of the flat and a probe slides in like butter. That tenderness, not the number, tells you it's done.
Rest (1 to 2 hr): Rest it wrapped, in an empty cooler or a turned-off oven, at least 1 hour. This is when the juices settle; skipping it dries the meat.
Slice (10 min): Separate the point from the flat along the fat seam. Slice the flat across the grain about as thick as a pencil; slice the point thicker, or cube it for burnt ends. Serve with white bread, pickles and onion.
Tips
The stall (the temperature stuck around 70°C for hours) is normal; wrapping gets you through it.
Fat side up in the oven, fat side toward the heat in an offset smoker.
Save the drippings from the paper and brush them on the slices.