This place, which is technically located in a pocket of unincorporated Miami-Dade County just across the street from Coral Gables, has old James Dean pictures and everything Fifties -- fried chicken, meaty chili, big portions, and no regrets -- and also serves the best milkshake we've had since childhood visits to the Wildwood Diner up in New Jersey. That's because Marie Burg is from Philly, where they put a little extra in the shake. Two huge scoops of Cisco ice cream (but only vanilla, chocolate, and strawberry, the classics), whole milk, half a minute in the blender, and God knows what else. (Marie ain't talking.) "The most important thing," she says, "is you've got to get that feeling like when we were kids and hanging outside the diner, you know? When everything counted soooo much? That's the secret." Marie somehow gets it in there, and she charges only $2.95. What could be bad? Picnics is open 5:00 a.m. to 8:00 p.m. Monday through Friday; Saturday till 5:00 p.m. and Sunday till 3:00 p.m.