In a hot pan with a little oil, lightly brown the beef for a few minutes
In the slow cooker combine the browned beef, beer, marmite, carrots and garlic. Crumble in a low salt beef stock cube, without adding any more liquid. Optionally add some bay leaves.
Cook on high for 3-4 hours or low for 7-8 for best results.
After slow cooking, remove the bay leaves and serve.