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The Art of the Sri Lankan Bar Snack

At Rambutan in London's Borough Market, chef Cynthia Shanmugalingam has carved out a distinct niche by translating traditional Sri Lankan flavours for a fast-paced urban dining scene. A permanent fixture on her menu is the deep-fried snack, a category currently anchored by the hot butter squid bun. For professional kitchens, this dish demonstrates how to take hot butter squid—a classic Sri Lankan coastal preparation—and reformat it into a high-margin, handheld bar snack. By pairing crispy, spiced seafood with a soft, pillowy bun, the kitchen balances texture while capturing the high-impact heat and richness of Sri Lankan cooking. The format makes it highly approachable for customers while offering chefs an efficient platform for delivering bold, spiced profiles.

Controlling Crispness and Moisture

The technical challenge of any fried seafood bun lies in texture management. To prevent the squid from becoming rubbery, it requires rapid, high-heat deep frying. The seafood must transition from raw to perfectly cooked in a matter of moments, locking in moisture while establishing a dry, golden exterior. The next critical step is the butter toss. Rather than drowning the fried squid in a heavy sauce, it is tossed quickly in a seasoned, spiced butter mixture. This coats the crispy batter without oversaturating it, ensuring the crunch remains intact when nestled inside the soft bun. Chefs must monitor the temperature of both the frying oil and the spiced glazeGlazeA shiny coating applied to food to add flavour, colour, moisture or visual finish. to prevent the batter from turning soggy before it reaches the table.

Menu Positioning and High-Volume Service

Integrating a deep-fried bun into a busy service line requires careful prep-station organisation. The squid must be cleaned, prepped, and portioned ahead of service, while the spiced butter needs to be held at a temperature that keeps it fluid without splitting. Because this dish relies on a stark contrast of temperatures and textures—hot, crispy squid against a soft, fresh bun—it must be assembled and run to the floor immediately. This makes it an ideal low-food-cost, high-yield option for bars, casual dining spots, and modern sharing menus looking to introduce vibrant South Asian street food elements to their service.