kue lumpur — Indonesia

Kue lumpur, literally “mud cake,” is a soft, custard-like cake cooked in small round molds, its name describing the dense, slightly wet texture of the batter rather than any ingredient. It belongs to a wide family of Indonesian griddle cakes cooked in individual cups rather than a single tin. The batter brings together mashed potato, eggs, sugar and coconut milk into a thin, pourable mixture, closer to a custard than to a Western cake batter. This starchy base is what gives kue lumpur its particular softness: barely set at the edges, dense and moist in the center, with none of the airy crumb of a flour-only cake. Cooking happens in a special pan of shallow round molds, similar to the one used for poffertjes, set over gentle heat and covered so the cakes steam slightly as they set. Each mold is filled only partway, since the batter rises little; the cakes are ready once the top firms without turning dry, then are usually finished with a few raisins pressed into the surface before serving. Reported across Indonesia rather than tied to one particular place, kue lumpur turns up at street stalls and in home kitchens alike, sold alongside other small cakes as a snack for any time of day. Variations swap the raisin topping for grated cheese, shredded coconut or slices of young jackfruit, but the base of potato, coconut milk and egg stays the throughline across versions.