Indonesian Steamed Cakes: Kue Basah Compared
Indonesian steamed cakes belong to a family the language calls kue basah, or wet cakes, and most of the small sweets sold from market trays, street carts and school gates come from it. The cooking method and the base flour shape the texture far more than the name does, which is why two cakes with similar names can taste nothing alike. Sorting the family by base, method and shape lets you read a tray and know what you are buying. The wider Indonesian snacks and sweets guide covers the rest of the jajan table, and most of the cakes named here have a page of their own.
Indonesian steamed cakes start with the idea of kue basah
Kue basah means cakes that are steamed and contain liquid. Because of that moisture they do not keep well and spoil quickly, and the contrast is with kue kering, the dry cakes that store for a long time. Those two points are the practical core. A wet cake bought in the morning belongs to that day, and one that smells sour has already passed its best.
In market use the word stretches beyond the strict definition. Vendors set pan-cooked and baked cakes beside the steamed ones, so steaming is the centre of the idea rather than a complete rule. A useful way to read any cake on a tray is to ask three questions: what the batter is made of, how the heat reaches it, and what goes inside or on top. Those answers predict the texture better than the name printed on a label.
How base flour changes the texture
Flour separates these cakes first. Rice flour gives a firm, slightly grainy bite, wheat flour gives a soft crumb, and tapioca or cassava gives a chewy, springy texture. Coconut milk and palm sugar appear across the whole family, but the flour decides whether a cake slices cleanly, crumbles or sags.
Rice flour with palm sugar and coconut
The clearest rice flour cake is kue putu, a coarse rice flour batter coloured green with pandan, with a core of palm sugar and a finish of grated coconut. Its close relative apem is a yeast-leavened dough of rice flour, coconut milk and palm sugar, usually served with grated coconut on top. The longer name kue apem refers to the same yeast-leavened, palm-sugar family, so the description on a tray tells you more than the name. Nagasari uses a similar rice-flour batter with coconut milk, but the cake is built around a slice of banana wrapped in banana leaves before steaming, so the leaf and the fruit shape its flavour.
Wheat flour, eggs and raising agents
Bolu kukus is a steamed sponge made from wheat flour, eggs, sugar and milk, and it is flavoured with vanilla, chocolate, pandan or strawberry. Compared with the rice cakes it is softer and fluffier. Kue pukis is also wheat-based, but it is raised with yeast and enriched with eggs and coconut milk, so it stays soft and slightly spongy inside. Kue cubit uses a different leavener: a wheat batter with eggs, sugar and milk, raised with baking powder and poured into a steel plate of small round basins. Its name refers to the pinch needed to eat one.
Tapioca, cassava and sago
Bika ambon is built on tapioca flour, eggs, sugar, yeast and coconut milk, and the yeast is what opens its sponge-like holes. It is the speciality of Medan in North Sumatra, and the best-known place to buy it is Jalan Mojopahit in Medan Petisah. A shop that bakes it the same day is the safer place to buy.
Cassava does the work in kue adee, a cake from Meureudu in Pidie Jaya, Aceh. Grated cassava is combined with coconut milk, eggs and sugar, then cooked in a pan or an oven rather than a steamer, with fried shallots scattered on the top. It is the clearest example of a wet cake that is not steamed, so buy it close to the day you plan to eat it.
Kue cantik manis works differently again. Sago pearls are cooked first and then folded into a coconut-milk mixture thickened with mung bean starch. The mixture is poured into moulds and left to set at room temperature, so the result is a set pudding with coloured pearls rather than a sponge.
Steamed cakes shaped by bamboo, leaves and moulds
Once the batter is set, the container often decides the shape and the flavour. Bamboo tubes, banana leaves, trays and bowls each leave a different mark on the finished cake.
Bamboo tubes and banana leaves
Kue putu is the best-known bamboo cake. The batter goes into a bamboo tube with palm sugar in the centre, and the steam melts the sugar into a sweet core. Vendors traditionally sold it from street steam carts, and the steam that escapes from the tubes makes a whistling sound that many Javanese communities know as a call. In Malaysia the same bamboo-steamed rice cake is called putu bambu, and Indonesian recipes sometimes use that name too, so the label alone will not tell you what you are buying.
Banana leaves do similar work with a different flavour. Awug is a steamed snack from the island of Java, made with rice flour, grated coconut and palm sugar, with the batter wrapped in a banana leaf cone and steamed. The palm sugar sits inside the wrapper, so each bite finishes sweet. Kue ku takes a sticky route instead, with a glutinous rice skin around a sweet filling. It is a Chinese-style pastry that still counts as a wet cake.
Moulds, trays and bowls
Kue talam is cooked in a tray rather than a cup. The traditional mould is a rectangular aluminium tray, and the finished cake is cut into squares. It has two layers: a green pandan base steamed first, then a white coconut-milk top added and steamed again, so the colours stay separate. Kue mangkok is the opposite shape. Its batter goes into tin or stainless steel cups or small bowls, and the name means bowl cake. The dough is a yeast-leavened mix of rice flour, wheat flour, tapioca, egg and coconut milk, and it steams until the top splits into petal-like sections. It is often chewy and slightly sticky, which sets it apart from bolu kukus.
Pandan and coconut layers
Putu ayu is a steamed pandan and coconut sponge. A spoonful of grated coconut, lightly salted and steamed, goes into the bottom of each mould, and a batter of flour, eggs, sugar and pandan-scented coconut milk is poured on top. The coconut layer is the clue that this is not the bamboo cake, even though the two names sound close.
Pan-cooked and mould-baked cakes
The second group is cooked in a hot pan or an iron mould rather than a steamer, and the difference shows in the crust. Batter that meets a hot surface forms edges and a base that a steamed cake never gets, which is why these cakes often have a crisp rim and a softer middle.
Serabi and kue ape
Serabi is a pancake of rice flour and coconut milk, traditionally cooked in a small earthenware pan. In Solo the cake is cooked only partly, which leaves a thin crisp base and a soft, moist centre, and it is often eaten plain, while other regional versions are served with kinca, a golden coconut-sugar syrup. Kue ape is the Jakarta relative. Its batter goes into a curved wok so the centre thickens while the edges spread into a thin rim that turns crisp, and pandan usually gives it the green colour.
Serabi Aceh is the Acehnese form, and people there use the name apam for it. Apam is usually eaten with grated coconut and sugar or with a warm sweet broth, and it is tied to feasts and to the month of Rajab in Aceh. If you are comparing it with the Javanese serabi, the toppings and the broth are the two differences to look for first.
Half-moon moulds
Kue pancong, kue pukis and kue rangi share a grill-like metal mould with half-moon basins, so their outlines look alike. Kue pancong is made from rice flour, grated coconut and coconut milk, and it is finished with granulated sugar. The pukis described earlier uses the same kind of mould, and it is usually softer and fluffier than pancong. The difference is in the base flour more than the shape, which is the reason to read the batter before you read the mould.
Fried and syrup-soaked cakes
Two cakes break the steamed pattern, and both are worth knowing before you buy.
Ring-shaped and fried
Kue cincin is a ring of rice flour, palm sugar and coconut milk that is fried rather than steamed. It is traditionally made by the Banjar communities of South Kalimantan, and the villages of Maringgit and Muara Rintis are known for it. Vendors there usually serve it warm, because the crisp outside and the soft inside are at their best while the cake is still hot.
Soaked in warm syrup
Bingka barandam is a Banjar cake of eggs, wheat flour and sugar. It is cooked in a mould and then soaked in warm palm-sugar syrup flavoured with pandan. Despite the name, it contains no coconut milk, which is the main difference from an ordinary bingka. The syrup is what makes it moist, so the cake is served only after it has been allowed to soak.
Choosing by texture
Start with the texture you want, then pick the cake that comes closest to it.
- Firm and grainy with a sweet centre: kue putu, with its Malaysian name putu bambu for the same method.
- Soft and sponge-like: bolu kukus, or kue pukis for a yeast-raised version with a little chew.
- Crisp edge and soft middle: serabi and kue ape.
- Honeycomb holes and a light, spongy crumb: bika ambon.
- Chewy and slightly sticky: kue mangkok.
- Set and silky rather than cakey: kue cantik manis.
Texture is not the only test. A cake that is fried, like kue cincin, or soaked in syrup, like bingka barandam, behaves differently as it sits, so ask the vendor how it was made before you choose.
Freshness, storage and buying
Because these are wet cakes, the most useful habit is buying close to when you will eat them. Kue putu is at its best warm and is traditionally sold from street carts, so the cart is the right place to buy it. Putu ayu is best eaten fresh. Kue adee follows the same logic and tastes best soon after it leaves the pan.
When a cake contains coconut milk and has been left out for hours, assume it is past its best. This is the wet-cake rule in practical form, and it applies to bolu kukus and bika ambon as much as to the cakes cooked on a street stall.
Reading names on a tray
Names overlap across regions, so a label can mislead. Serabi appears as surabi and srabi, and the same bamboo cake is putu bumbung in Java, putu bambu in Malaysia and puto bumbong in the Philippines, where it is often made from purple glutinous rice. In West Java pancong is also called bandros. If a name is unfamiliar, the ingredients and the cooking method will tell you more than the local label, and the question to ask is what the batter is made of and how it was cooked.
Put simply, choose rice flour for a firm, grainy bite, wheat for a soft crumb, and tapioca or cassava for something chewy or dense. Then decide whether you want steam, a hot pan or a fried ring, and the rest of the choice becomes much easier.