1️⃣ Preheat
Preheat oven to 325°F.
2️⃣ Sear for Flavor
Pat brisket dry. Lightly rub with olive oil and black pepper.
Heat your Dutch oven over medium-high heat and sear brisket for 3–4 minutes per side until deeply browned. Remove and set aside.
(This step builds incredible flavor — don’t skip it.)
3️⃣ Build the Base
Add half of the sliced onions and celery to the bottom of the Dutch oven.
Place brisket on top.
Lay remaining onion slices over the brisket like a cozy blanket.
4️⃣ Make the Savory Sauce
Whisk together:
Cream of celery soup
Au jus packet
Onion soup mix
Beef broth
Worcestershire sauce
Garlic
Pour mixture around and slightly over brisket.
Liquid should come about ½–¾ up the sides of the meat. Add more broth if needed.
5️⃣ Add Vegetables
Nestle carrots and potatoes around the sides (not piled on top).
Add thyme if using.
6️⃣ Slow Braise
Cover tightly with Dutch oven lid.
Bake for 3½–4 hours, until:
Internal temperature reaches 195–205°F
A fork slides in easily
Meat pulls apart effortlessly
If it feels tough, it simply needs more time.
Low and slow is the secret.
7️⃣ Rest & Slice
Let rest, covered, for 20–30 minutes before slicing.
Slice against the grain for the most tender texture.
🥄 Optional Gravy Finish
Remove brisket and vegetables.
Simmer remaining juices on stovetop.
Whisk together 1 tbsp cornstarch + 2 tbsp water and stir in until glossy and thickened.
Spoon generously over everything.