In a black roasting pan, combine beans with salt, Montreal steak seasoning, garlic cloves, and brown sugar.
Add roast on top and sprinkle lightly with salt.
Combine rub ingredients and spread over roast. Add 1 cup water to the bottom of pan.
Cover well and bake for 4 hours, until roast is tender and very springy to the touch. Note! If you use a Pyrex it will take longer and if you use a disposable it will take much longer!
Notes
The quantities and baking time in this recipe are for a very average sized 3lb roast. Adjust accordingly for a larger or smaller roast.