1. Chop the vegetables and aromatics into large chunks and arrange the pieces at the bottom of the crockpot. Then, place the beef roast on the vegetable bed and put the bouillon cubes on top of it.
2. Pour the water over the port’s content and place the lid. Then, seal it and cook the roast on LOW for six to eight hours, or HIGH for three to four hours. When the time is reached, check for an internal temperature of 145F, and confirm that the meat is fork-tender before serving.

Also, click this video for more tips.