I can honestly say I will never ever make another kind of grilled hamburger. These are wonderful. I found this recipe online a few years back and make them as often as I can. The ingredients sound a little strange because of the sour cream, but I think that's what makes them so good. Make sure to keep the patties well chilled until ready for the grill. I generally double or even triple this recipe for company. *NOTE: Make sure these burgers are chilled very well, otherwise they will fall apart on the grill.