preheat oven to 500°F.

Prep the roast by making several splits in it and filling the holes with salt, pepper, and minced garlic

Now salt and pepper the rest of the roast. You may want to use more salt and pepper than indicated above.

Put the roast in the oven and sear for 20 minutes

Add water and chopped onion and reduce the temperature to 275°F

Cook for 20 minutes per pound. I like mine rare so that is what you will get when you cook for this period of time