"The soup mix seasoning is a game changer!..."
1 oz. envelope onion soup mix
light brown sugar
kosher salt
ground black pepper
3 lb piece of beef brisket (flat cut)
fresh thyme sprigs
whole garlic cloves
bay leaves
carrots, peeled and cut into 2-inch pieces
golden baby potatoes
celery stalks, cut into 1" pieces
large sweet onion, cut into 8 wedges
beef stock
Worcestershire sauce
cornstarch