Lobster on a roll

MOVE aside, wagyu burgers. Lobster rolls are the gourmet fast food du jour. Essentially a butter-griddled hot dog bun stuffed with cold mayonnaise-coated lobster meat chunks, the luxe snack drew three hour-long queues when lobster-only Duxton eatery Pince and Pints opened its doors a fortnight ago. At least eight other restaurants now sell the rolls here, up from two some years ago.

But they weren't always so popular, recalls Nicholas Lin of seven-month-o…