100 South Chop House emulates swanky 1950s supper clubs with ambient jazz, tender steaks, and ambrosial martinis. Diners can fork-spear a filet mignon, rib-eye, or skirt steak, or release the knife gripped between their teeth to slice into coconut-crusted and teriyaki-glazed fish such as mahi mahi, salmon, and sea bass mingling with jalapeño peppers. Burger patties sizzle under mounds of melting white cheddar, spicy blue, or buffalo mozzarella. Meanwhile, chefs simmer sauces such as asiago cream, basil tomato, and garlic white-wine to toss with pastas. Patrons can select glasses of wine from a roster of dozens, including myriad cabernets, merlots, and posh reserve vintages that arrive wearing fedoras and wingtips.