  You should cook your bottom round roast 30 minutes per pound simmering slowing on the stove top, in the oven or in a crock pot/slow cooker for at least 3 hours submerged â¦ in liquid.Liquids can be a combination of spices, red wine, beef broth and water. You should cook your bottom round roast 30 minutes per pound simmering slowing on the stove top, in the oven or in a crock pot/slow cooker for at least 3 hours submerged â¦ in liquid.