- 2 teaspoons yeast extract spread (such as Marmite®)
- 2 (6 ounce) beef chuck steaks
- 2 teaspoons brown sugar
- 1 onion, diced
- 1 carrot, diced
- 2 ribs celery, chopped
- Spread yeast extract on both sides of each rump steak; sprinkle brown sugar on top.
- Place steaks in a slow cooker with onion, carrot, and celery.
- Cook on Low until steaks are tender, 7 to 8 hours.