Hot weather does funny things to people, especially to cooks. Certain instincts crop up at about the same time that air conditioners crank up the juice. Primeval visions prevail, usually of smoldering coals and roasting meat, prompting the almost daily obeisance to that great American tradition, the summer barbecue grill. And summer just wouldn’t be … More Hamburger Heaven, or the Global Burger: A Medley of Recipes