Trim fat down to 1/4 inch
Sear both sides in a large Dutch Oven
Slice 2-3 Onions, enough to cover the bottom of the pan and sauté in the beef fat, careful to not brown too much
Place the onions in a large foil roasting pan
Place meat on top of the onions
Mix and pour over top:
- 2 Cups Ketchup
- 2 Cups Campbell's Concentrated Beef Broth
- Juice of 2 Small Lemons
- 2 Cups Water
Cover with foil and roast in 275 Degree Oven for 6-8 Hours (about one hour per pound)
Cool and put entire pan in the fridge overnight
Remove solidified fat, slice brisket against the grain, place in baking dish with half of the liquid and onions. Reheat sliced brisket in a 350 Degree Oven for 30 minutes. Use a stick blender to puree the other half of the liquid and onions and reduce over medium-low heat. You may also use a corn starch slurry, if desired.