Preheat the oven to 325 F. Place the rack of the oven just below the center.
In a bowl, combine all of the spices (except the bay leaves) and mix together until fully combined.
Preheat a large heavy bottom pan on medium-high heat. Add the avocado oil (or other high smoke point oil) to the pan. Sear the roast on all sides so it browns. It will take a few minutes per side, flip with tongs when it naturally releases from the pan. Once seared, remove the beef roast from the pan and set it aside. Turn the heat off but leave the pan on the burner.
Wipe out any large amount of excess oil in the pan. Then add in the butter (leave the heat off so it doesn't burn). The butter will sizzle and melt fast from the residual heat, you can stir it in the pan to lift the fond (brown bits).
To the melted butter, add all of the spices (except the bay leaves) to the butter and whisk to combine. Allow the spices to develop the aromatics for 1-2 minutes. It may look a bit thick.
Turn the heat back on to medium low. Add the fresh, roughly chopped garlic and allow it to cook in the spicy butter mixture for 1-2 minutes.
Take the large seared roast and place it back into the pan. Turn the roast over into the spiced butter so it coats the meat.
Pour in the low sodium stock then add in the bay leaves. It's ok if the stock doesn't completely cover the meat. Bring the stock mixture up to a simmer then remove the pan from the heat.
Carefully transfer the pan to the preheated oven. Roast the meat uncovered until the internal temperature reads 190-195 F. internal (this is not a roast beef, I promise this is correct- see my notes section below). The meat should be tender enough that any connective tissue and collagen breaks down but the meat should not be shreddable (this takes about 3-3.5 hours, but every cut of meat is different so monitor as needed).
Remove the beef and the au jus from the oven and let it cool for an hour off the heat on the stove. Then transfer the entire mixture (as is) straight into the fridge to cool overnight. The meat must completely chill to 40 F. to make it easy for slicing.