Roast for 23 minutes for medium-rare (only 20 minutes if it is a long, thin piece). When the beef is cooked, remove from the oven, cover with aluminium foil and leave to rest for 15 minutes.
The liquid should cover about half of the meat - if not, add more beef stock as needed. Cover securely with the lid and bake for 1.5 hours at 300 degrees. Remove from oven and stir in Buerre Manie’.
As well as a slow cooker, you'll need a small beef chuck roast, a bottle of Heinz chili sauce, gingersnap cookies, and around seven carrots. I started by searing my chuck roast in a cast-iron pan ...