Potato, beef broth

A cubed potato boiled in commercial beef broth. That's all.

Dolled up with additional flavors. A few alliums, a few ground spices, a few whole seeds. That's all.

Caramelized onions cannot be rushed. They undergo modifications as they cook slowly. Eventually they'll become sweet at about forty-five minutes on low, depends on the type, and they pass through a slightly vinegary stage at about twenty-five minutes, some of them do, that's when these onions were stopped. So this broth has a very slight vinegar tang that would become sweet if left to caramelize longer. 

If your onions go too fast and start to burn then they can be doused with water to slow them back down. 

This is a satisfying in-between meal. Half this amount would be a good starter for a multi course dinner.