It's after midnight. You've just spent the past five hours studying for a big midterm exam or finishing a work project that has an 8 a.m. deadline. You need a sugar fix. Not just your run-of-the-mill Snickers bar high, but the sort of mental state brought on only by flan. The perfect flan. The kind with a smooth, sweet layer on top. You'll find it at Chico's, a Hialeah landmark that's open 'round the clock and serves some of the tastiest Cuban cuisine north of Havana. The chances you run into Mayor Julio Robaina are pretty good. The chances you see a customer savoring the flan are even higher. Chico's owner, Jesús Ovides, is there 24/7 to make sure the flan and all the other great eats meet his high standards. And don't let the city's confusing street names scare you. You can get to Chico's from NW 103rd Street (West 49th Street in Hialeah). When you reach West 12th Avenue, head south about nine blocks. Chico's is on the right side, behind a bank.