This oven baked 5-ingredient French onion brisket is one of those set-it-and-forget-it meals that feels totally special-occasion but is realistic for a busy week. The magic is in rubbing dry French onion soup mix and just three pantry ingredients all over a raw beef brisket right in the roasting pan, then letting the oven do the slow work. It tastes like the cozy pot roasts a lot of us in the Midwest grew up with, but with almost no prep and only one pan to wash. Perfect for holidays, Sunday dinners, or anytime you want that rich, savory, fall-apart beef without hovering over the stove.
Serve thick slices or chunks of the French onion brisket over creamy mashed potatoes, buttered egg noodles, or rice to soak up all the oniony pan juices. A simple green side salad or roasted green beans balances the richness, and warm dinner rolls or crusty bread are great for mopping up the sauce. If you’re entertaining, pair it with a light red wine or iced tea and set the brisket out family-style so everyone can help themselves.
Oven Baked 5-Ingredient French Onion BrisketServings: 6-8
Ingredients
3 1/2 to 4 pounds beef brisket, trimmed of excess hard fat
2 (1-ounce) packets dry French onion soup mix
1/4 cup olive oil
1/4 cup Worcestershire sauce
1 cup beef broth (or water, in a pinch)
Directions
Preheat your oven to 300°F (150°C). Place a rack in the lower third of the oven so there’s room for your roasting pan.
Set a large roasting pan on the counter. Lay the raw beef brisket in the pan, fat side up, and pat it dry with paper towels so the seasoning sticks better.
In a small bowl, stir together the dry French onion soup mix, olive oil, Worcestershire sauce, and beef broth until you have a loose, chunky paste.
Pour the French onion mixture directly over the brisket in the roasting pan. Using clean hands, rub the mixture all over the top, sides, and any exposed underside of the raw brisket so every surface is coated and some of the liquid settles into the bottom of the pan.
Once the brisket is fully coated, spoon a little of the liquid from the bottom of the pan back over any bare spots so the seasoning is evenly distributed.
Cover the roasting pan tightly with heavy-duty aluminum foil, sealing the edges well so steam doesn’t escape. This helps the brisket stay moist and tender.
Transfer the covered pan to the oven and bake for 3 to 3 1/2 hours, or until the brisket is fork-tender and easily shreds when you test a corner with a fork. Thicker cuts may need up to 4 hours.
Carefully remove the pan from the oven and let the brisket rest, still covered, for 15 to 20 minutes so the juices redistribute.
Uncover the pan. Transfer the brisket to a cutting board and slice it against the grain into 1/4- to 1/2-inch slices, or shred it with two forks if you prefer.
Spoon some of the French onion pan juices over the sliced or shredded brisket before serving, and pass extra juices at the table for anyone who wants more.
Variations & Tips
For extra richness, you can swap half of the beef broth for red wine or dark beer; just keep the total liquid amount the same so the brisket braises properly. If your family likes a little sweetness, whisk 1 to 2 tablespoons of brown sugar into the French onion mixture before rubbing it over the brisket. To make it feel more like a pot roast, scatter thick-cut onions and carrot chunks around the brisket in the roasting pan before baking (this adds bulk but doesn’t change the core 5-ingredient brisket itself). For a leaner option, trim more of the exterior fat before cooking, but keep at least a thin cap so the meat stays moist. Leftovers are great for sandwiches: reheat sliced brisket in a skillet with some of the pan juices and pile onto toasted rolls with melty cheese. Food safety tips: Always start with a fully thawed brisket; cooking from frozen can lead to uneven temperatures. After rubbing the raw beef, wash your hands, utensils, and any surfaces that touched the raw meat or marinade with hot, soapy water to avoid cross-contamination. Use a meat thermometer if you’re unsure—brisket will be well past 190°F when fork-tender, which is normal for this cut. Refrigerate leftovers within 2 hours of cooking and use within 3 to 4 days, or freeze for up to 3 months in airtight containers.
