Boil brisket for 5 minutes, and dump away the boiling water

Into a small slow cooker pot, place quartered onion and bayleaf, as well mustard seeds, then place boiled brisket on them, making sure the brisket sit on those nicely

Pour broth in

Grind mustard seeds and rub them on the top of the brisket, as well sprinkle top with freshly cracked black pepper, then add in 4 more bay leaf, spread out here and there. Cook brisket on high for 6 H

Meanwhile, cut broccoli flowers, quarter your potatoes, and place them into a large bowl, along with baby carrots. Rinse and soak them in water until ready to use

Once 6 H is up, add in veggies (discard the soaking water) in the crockpot, and continue cooking on high, for another 3 H