Take Roast out of packaging and transfer into a bowl. Add some oil to coat it. Then rub it down with Tony's seasoning and McCormick seasoning. Set to the side.
Prepare crockpot by adding the liner - optional
Turn stove on to high and preheat the dutch oven. This will allow the rest to have a good sear when it goes in.
In the mean time, cut up the onions
When the pot is really hot add in 1 tbsp oil. Then Add in the roast. You're not cooking the roast, just giving it a good sear. Sear on each side about 30-45 seconds.
Take out of dutch oven and transfer to pre-lined crockpot (easy clean up). Turn the heat to medium.
Add the onions and garlic into the dutch oven. Cook down until onions are transparent (about 2 minutes).
Then add packet of Au Ju and the 2 packets of French onion soup mix.
Now to deglaze the dutch oven add 3 cups of water and let it come to a boil.
Take off heat and transfer the juices and veggies directly to the crockpot with roast in it.
Cook on low for 6 hours (will yield shredded beef)