1. Place roast beef into your slow cooker.
2. Pour beef consumme over roast beef.
3. Cook on high 4 hours or on low 6-8 hours.
4.Once roast beef has cooked, remove from slow cooker with tongs. Break apart lightly with two forks.
5.Separate fat from beef au jus leftover in crockpot.
6. Serve with buns, dip sandwiches in au jus.