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Learn how to make authentic bika ambon at home with this easy tutorial. Discover its honeycomb texture, sweet pandan aroma, and a foolproof step-by-step recipe.
Cut into a slice of bika ambon and you will notice something odd before you even taste it: dozens of tiny tunnels running straight through the cake, like someone built a miniature apartment complex for bees inside your dessert. That strange texture, paired with a warm coconut and pandan aroma, is exactly why this golden Indonesian cake has confused and delighted people for decades, especially once they learn its name suggests Ambon while its true hometown is actually Medan, North Sumatra. Geography aside, bika ambon has earned its reputation as one of Indonesia’s most iconic treats, and today we are going to make one from scratch, holes and all.
What Exactly Is Bika Ambon?
Bika ambon is a traditional Indonesian cake known for its bright yellow color, chewy bite, and a texture riddled with tiny tunnels that look remarkably like a beehive. It is not a soft fluffy sponge like chiffon cake, nor is it dense like pound cake. Instead, it sits in its own delicious category: springy on the outside, slightly gooey and stretchy on the inside, with a caramelized bottom crust that adds a gentle crunch.
The cake gets its signature aroma from coconut milk, pandan leaves, and kaffir lime leaves simmered together before being mixed into the batter. Some versions also include lemongrass for an extra citrusy lift. The honeycomb holes are not a decorative trick. They form naturally when yeast ferments the batter for several hours, releasing air bubbles that get trapped as the cake bakes.
As for the name, nobody agrees on the full story. One popular theory says the cake was first sold and popularized around the Jalan Ambon intersection in the Sei Kera area of Medan, which is how it picked up the name despite having no real connection to Ambon Island. Another theory claims it has nothing to do with Ambon Island at all. Either way, the mystery has not stopped bika ambon from becoming a must-buy souvenir whenever someone visits Medan.
What Does Bika Ambon Taste and Look Like?
Picture a cake with a deep golden yellow interior, slightly caramelized brown edges, and a surface pockmarked with dozens of tiny holes running from top to bottom. Slice into it and the texture practically stretches like warm mozzarella before settling into soft, chewy strands.
The flavor is rich but not overwhelming. Coconut milk gives it a creamy backbone, sugar brings a deep caramel sweetness, and the pandan and lime leaves add a fragrant, almost floral finish. It is sweet enough to satisfy a dessert craving, yet light enough that you will not feel weighed down after a slice, or three.
Common flavor variations found in Indonesian bakeries include:
- Original pandan – the classic version with a subtle green herbal note
- Cheese – topped with a savory grated cheese layer
- Durian – for those who enjoy the famously polarizing fruit
- Chocolate – a modern twist for chocolate lovers
- Pandan milk – a creamier, milkier take on the original
Why Bika Ambon Has Those Famous Honeycomb Holes
The holes are the whole point, and getting them right is part science, part patience. The batter needs live, active yeast to ferment properly, and the resting time (often two hours or more) allows gas bubbles to build up throughout the mixture. When the batter finally hits a very hot baking pan, those trapped bubbles expand quickly and set in place, leaving behind the honeycomb pattern once the cake is fully baked.
A few things can sabotage your holes before they even form:
- Using expired or inactive yeast, which means no bubbles at all
- Pouring batter into a pan that is not preheated properly
- Baking at uneven oven temperatures, which stops the holes from developing evenly
If your first attempt at bika ambon comes out more “smooth cake” than “honeycomb cake,” do not panic. Almost every home baker in Indonesia has been there. Adjust your oven temperature and resting time, and try again.
How to Make Bika Ambon at Home
This recipe is adapted from time-tested Indonesian home cooking methods, simplified for anyone baking bika ambon outside of Indonesia for the first time.
Ingredients
For the yeast starter (biang):
- 100 ml warm water
- 1 teaspoon instant yeast
- 1 teaspoon sugar
- 3 tablespoons all-purpose flour
For the coconut milk mixture:
- 400 ml thick coconut milk
- 2 stalks lemongrass, bruised
- 4 kaffir lime leaves, torn
- 1/2 teaspoon salt
- 1/4 teaspoon turmeric powder (for color)
For the batter:
- 200 g tapioca starch (sagu or tapioca flour, not all-purpose flour)
- 5 large eggs
- 200 g granulated sugar
- 1/2 teaspoon vanilla extract
- Melted butter or margarine, for greasing the pan
Step-by-Step Instructions
- Activate the yeast. Mix warm water, yeast, sugar, and flour in a small bowl. Let it sit for about 15 minutes until foamy. This tells you the yeast is alive and ready to work its magic.
- Simmer the coconut milk. In a saucepan, combine coconut milk, lemongrass, kaffir lime leaves, salt, and turmeric powder. Cook over low heat, stirring occasionally, until it gently boils. Let it cool to room temperature.
- Whisk the eggs and sugar. In a large bowl, beat eggs, sugar, and vanilla until pale and slightly thickened.
- Combine everything. Add the tapioca starch to the egg mixture alternately with the cooled coconut milk, stirring gently. Fold in the yeast starter last.
5. Let it rest. Cover the batter with a clean cloth or plastic wrap and let it ferment for 2 hours at room temperature. This step is non-negotiable if you want that honeycomb texture.
6. Preheat everything. Preheat your oven to 180°C (350°F). Grease a baking pan with melted butter and place it inside the oven to heat up before pouring in the batter.
7. Bake with patience. Pour the batter into the hot pan and bake for about 40 minutes. For the first 20 to 30 minutes, leave the oven door slightly ajar. This small trick helps the honeycomb holes form properly instead of collapsing.
8.Cool and slice. Let the cake cool completely before slicing, since it firms up as it cools and becomes easier to cut into clean pieces.
Tips for the Best Bika Ambon
- Use fresh coconut milk if you can, since it gives a richer aroma than the instant packaged kind
- If using instant coconut milk, mix it with water that has already been simmered with lemongrass and lime leaves for extra depth
- Always double-check your yeast is active before committing to the full recipe
- Serve bika ambon fresh within a day or two, as the texture gradually firms up and loses its softness over time
Storing and Serving Bika Ambon
Bika ambon is best enjoyed the same day it is baked, when the texture is at its softest and the aroma is strongest. If you have leftovers, wrap the cake tightly and store it at room temperature for up to two days, or refrigerate it for slightly longer. Just remember to let refrigerated slices come back to room temperature before eating, since the cold makes the texture noticeably firmer and less chewy.
It pairs wonderfully with a cup of Indonesian coffee or hot tea, and it makes a thoughtful homemade gift for anyone curious about Indonesian desserts.
Bika ambon might test your patience with its resting times and honeycomb requirements, but the payoff is a cake unlike anything else in the dessert world. Between the pandan fragrance, the chewy bite, and those oddly satisfying little holes, it is easy to see why this cake has stayed a favorite across generations of Indonesian bakers and beyond. Once you nail the technique, do not be surprised if bika ambon becomes your new go-to recipe for impressing guests, or simply treating yourself on a lazy weekend.
Learning to cook a dish like bika ambon is also a wonderful entry point into Indonesian culture, language, and daily life. If baking this cake has sparked your curiosity about Bahasa Indonesia itself, whether it is understanding recipe terms, chatting with locals at the market, or simply diving deeper into Indonesian traditions, BASANTARA is here to help. As a language institution dedicated to teaching Bahasa Indonesia to foreign learners, BASANTARA offers structured, practical lessons designed around real conversations, culture, and everyday life in Indonesia.
Ready to learn the language behind the cake? Reach out to BASANTARA via WhatsApp at +62 852 1396 8601 or visit basantara.net to start your Bahasa Indonesia journey today.
