In a black roasting pan, combine beans with salt, Montreal steak seasoning, 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.