Was at a local festival today and discovered something I must try when I make my own burgers next time. I ate at a chilean stall who made amongst other things, burgers. And I noticed they boiled the patties before grilling them. It was one of the tastiest fricken burgers I've ever eaten and there was a real nice taste and juiciness from it being boiled.
I'm definitely trying this and wanted to share this, at least to me, ludicrous concept of boiling your burgers.