Cook. 2 h 25 m; Ready In. 2 h 35 m; Place corned beef in large pot or Dutch oven and cover with water. Add the spice packet that came with the corned beef. Cover pot and bring to a boil, then reduce to a simmer. Simmer approximately 50 minutes per pound or until tender. Add whole potatoes and carrots, and cook until the vegetables are almost tender. read more