Ah, the hot dog. Robustly flavored and inherently bad for you, hot dogs have a unique and universal appeal. The other day I was at a birthday party for a one-year-old whose parents had hired a genuine hot dog vendor -- ostensibly for the kids. For the grownups the hosts had hired JoAnna's Marketplace in Coconut Grove to cater the affair. The fare, including cucumber-and-salmon sandwiches with the crusts cut off, was genteelly delicious. Yet most of the partygoers, adults and children alike, crowded around the hot dog cart. As one attendee remarked, staring at the poached salmon and mixed baby-greens salad with vinaigrette, "I can't even look at this stuff when there's... More >>>