Bika Ambon: A Taste of Indonesian Honeycomb Cake

The first time I encountered Bika Ambon, it was at a small Indonesian market in Amsterdam. The golden, bubbly surface of the cake, radiating warmth from under a heat lamp, immediately caught my eye. One bite, and I was transported – the moist, spongy texture, the rich coconut flavor, and the distinctive honeycomb structure were unlike anything I’d ever tasted. It was sweet, yes, but also subtly savory, with an almost fermented tang that hinted at its complex creation. It felt like sunshine captured in a cake, and I was hooked.

Recipe Overview

• Prep Time: 30 minutes
• Cook Time: 45 minutes
• Total Time: 3 hours 15 minutes (including fermentation)
• Servings: 12
• Yield: 1 cake
• Dietary Type: Not Gluten-Free, Not Dairy-Free

Ingredients

• 330 ml thick coconut milk
• 100 ml lukewarm water
• 50 g plain flour
• 2 teaspoons dry yeast
• 150 g rice flour
• 100 g tapioca flour
• 250 g caster sugar
• 180 ml coconut water
• 5 egg yolks
• ½ teaspoon vanilla essence
• ¾ teaspoon salt

Equipment Needed

• Small saucepan
• Small bowl
• Mixing bowl
• Damp tea towel
• Lightly greased baking tray (approximately 20cm x 20cm or 8in x 8in)
• Oven

Instructions

1. Begin by preparing the thick coconut milk. Pour it into a small saucepan and gently bring it to a low boil over very low heat. Be careful not to scorch the milk – stir it frequently. Once it reaches a simmer, remove it from the heat and set it aside to cool completely. Cooling is crucial; the hot milk will inhibit the yeast later on.

2. Next, activate the yeast. In a small bowl, combine the lukewarm water, plain flour, and dry yeast. Stir well to ensure the yeast is fully incorporated. Set this mixture aside in a warm place for about 10-15 minutes, or until it becomes frothy. This step is essential for ensuring the cake rises properly and develops its characteristic honeycomb texture.

3. In a large mixing bowl, combine the rice flour, tapioca flour, caster sugar, coconut water, egg yolks, vanilla essence, and salt. Whisk these ingredients together thoroughly until you achieve a smooth, lump-free batter.

4. Add the fermented yeast mixture and the cooled coconut milk to the flour mixture. Gently fold everything together until just combined. Be careful not to overmix, as this can lead to a tough cake.

5. Now comes the fermentation stage, which is critical for Bika Ambon’s unique texture. Cover the mixing bowl with a damp tea towel to prevent the batter from drying out. Set the bowl aside in a warm place and allow the mixture to ferment for 2-3 hours. The batter will rise slightly and develop a subtle tangy aroma. The exact fermentation time may vary depending on the ambient temperature; in warmer conditions, it may ferment faster.

6. Preheat your oven to 200°C (390°F). While the oven is heating, gently grease your baking tray. You can use butter, oil, or baking spray.

7. Once the fermentation is complete, gently pour the batter into the prepared baking tray. Be careful not to stir or deflate the batter too much.

8. Bake the cake in the preheated oven until the top is a deep golden brown and a skewer inserted into the center comes out clean. This usually takes around 45 minutes, but baking times can vary depending on your oven. Keep a close eye on the cake during the last 15 minutes of baking to prevent it from burning. If the top is browning too quickly, you can tent it loosely with foil.

9. Remove the cake from the oven and let it cool completely in the tray before slicing and serving. Cooling the cake completely allows the structure to set and prevents it from collapsing.

Expert Tips & Tricks

• Coconut Milk Quality: The quality of your coconut milk will significantly impact the flavor of the Bika Ambon. Opt for full-fat, thick coconut milk for the richest taste and texture.
• Yeast Activation: Ensure your yeast is active before adding it to the batter. If the yeast mixture doesn’t froth, it may be expired, and your cake won’t rise properly.
• Fermentation Time: Don’t rush the fermentation process. This step is crucial for developing the cake’s characteristic honeycomb texture.
• Oven Temperature: Keep a close eye on the oven temperature. An oven that is too hot can cause the cake to burn on top before it is cooked through.
• Honeycomb Development: For a more pronounced honeycomb effect, some bakers recommend placing the cake on the bottom rack of the oven for the first half of the baking time, then moving it to the middle rack for the remainder.

Serving & Storage Suggestions

Bika Ambon is best served at room temperature. Cut into small squares or rectangles to showcase the honeycomb structure. It pairs beautifully with a cup of strong Indonesian coffee or tea.

To store leftovers, wrap the cake tightly in plastic wrap or store it in an airtight container in the refrigerator. It will keep for up to 3-4 days. Bring it to room temperature before serving. Due to its high moisture content, Bika Ambon doesn’t freeze well. In hot weather, it is especially important to refrigerate the cake.

Nutritional Information

(Estimated per serving)

Nutrient	Amount per Serving	% Daily Value
Calories	250 kcal	13%
Total Fat	10g	15%
Saturated Fat	7g	35%
Cholesterol	50mg	17%
Sodium	100mg	4%
Total Carbohydrate	40g	15%
Dietary Fiber	1g	4%
Sugars	25g	–
Protein	3g	6%

Variations & Substitutions

• Pandan Flavor: Add a few drops of pandan extract to the batter for a vibrant green hue and a fragrant, floral aroma.
• Durian Flavor: For a truly authentic (and adventurous) twist, add a small amount of durian puree to the batter. Be warned: durian is an acquired taste!
• Gluten-Free Version: While traditionally made with rice and tapioca flour, you can experiment with other gluten-free flour blends. Be aware that the texture may differ slightly.
• Vegan Version: Replace the egg yolks with a commercial egg replacer or a combination of flaxseed meal and water. Ensure your coconut milk is vegan-friendly.

FAQs (Frequently Asked Questions)

Q: Why is the fermentation step so important?
A: The fermentation process allows the yeast to create carbon dioxide, which forms the characteristic honeycomb structure of Bika Ambon. It also contributes to the cake’s unique tangy flavor.

Q: How can I tell if the cake is done?
A: The cake is done when the top is a deep golden brown and a skewer inserted into the center comes out clean. The cake should also spring back slightly when gently pressed.

Q: My cake didn’t develop a honeycomb structure. What went wrong?
A: Several factors can contribute to this, including inactive yeast, insufficient fermentation time, or an oven that is too hot. Make sure your yeast is fresh, allow adequate fermentation time, and monitor the oven temperature closely.

Q: Can I use a different type of sugar?
A: Caster sugar is recommended for its fine texture, which dissolves easily in the batter. However, you can substitute granulated sugar if necessary.

Q: How do I prevent the cake from burning on top?
A: If the top of the cake is browning too quickly, you can tent it loosely with foil during the last 15 minutes of baking.

Final Thoughts

Bika Ambon is more than just a cake; it’s a testament to the patience and precision of Indonesian baking traditions. Don’t be intimidated by the fermentation process – the resulting texture and flavor are well worth the effort. So gather your ingredients, embrace the warmth of your kitchen, and embark on a culinary journey to create this extraordinary honeycomb cake. I encourage you to share your creations and experiences! And if you’re feeling adventurous, pair a slice of Bika Ambon with a fragrant Indonesian spiced tea. Selamat makan!