Whenever I have a question about how to do something in the kitchen, I head to youtube. I'm a visual learner and there's videos on there for pretty much anything. The guys in this video are kind of dorky, but the instruction is good: www.youtube.com/watch?v=NJtn6ZVTDa8
They're using butter in the video, but olive oil works just fine. I've found that 1tbsp is enough, because like a PP said, once the onions get going they "sweat" and create more liquid. Also like a PP suggested, don't add the garlic at the same time as the onions since it cooks fast and will just burn.
And just a note, it's usually not a good idea to mix oil and water when cooking. They don't go together at all, and the water will just cause the oil to "spit" and possibly burn you and just makes a mess.
Edited by: YOJULEZ at: 4/4/2013 (12:10)