KitchenTigress: Pandan Kaya Cake

Pandan Kaya Cake

3-layer pandan kaya cake
The cake part of pandan kaya cake is quite straightforward. It's a sponge cake made with the separated egg method. If you follow the recipe and you know how to whisk egg whites to firm peak stage, your cake will be fluffy, moist and fragrant.

If you don't know what the hell firm peak stage is and you need instructions on how to follow instructions, please refer to my posts, Cake FAQ and Cake Dos and Don'ts.

The kaya part of pandan kaya cake is made with pandan juice, as well as pandan paste to boost the colour. There's coconut milk as well, pandan's best friend. The two combined would make (almost) anything sweet taste good.

Turning pandan leaves into pulp is easy when you use a food processor or blender instead of mortar and pestle.
squeezing juice from minced pandan leaves
How to squeeze the hell outta pulverized pandan leaves, so that you get every drop of juice possible?

The hard way: with your bare hands. The easy way: with a potato ricer. (You know Archimedes' Law of the Lever . . . don't you?)

Besides coconut milk and pandan juice, there's also butter in cake kaya.

The butter hides the floury taste of hun kwee flour.

Unlike its cousin that's spread on bread, cake kaya is made without eggs. Bread kaya is set with eggs but cake kaya is set with hun kwee flour (a starch made from mung beans) and agar-agar powder.
assembling cake: pouring kaya custard on pandan cake
Pandan kaya cake may be assembled upside down. IOW, you start with a layer of kaya and finish with a layer of cake on top. After the kaya is set, the cake is flipped right way up.

I prefer to assemble my cake right way up, starting with a layer of cake and finishing with a layer of kaya.

If you do it my way, make sure the kaya isn't too thin when you pour it on the first cake layer. If it's watery, it'll seep under the cake. What's the right consistency? Kind of like thick but pourable cream.

Kaya that's too thick is also problematic. If it's not thin enough to flow smoothly, the layers formed won't be even.

How do you stop the kaya from becoming too thick?

1) Measure the ingredients accurately. 2) Don't overcook the kaya. 3) Have your cake layers and pan (or cake ring) ready before cooking the kaya.
slice of 3-layer pandan kaya cake plated
If you look at the written recipe below, you'll find it's rather long. That's because describing the process in detail requires a lot of words. Well, 1,000 words = 1 picture, right? If you watch the video, the recipe doesn't look too daunting. In fact, if you enjoy baking, it looks exactly like the kind of thing you'd want to do this weekend.

Repeat after me: "Baking is fun, not work! Baking is fun, not work! Baking is . . ."

How to make pandan kaya cake (班兰咖吔蛋糕)

Step-by-step guide

Pandan kaya cake is a layered sponge cake combined with kaya kueh. Made with coconut milk and pandan, it's light yet full of flavour. The kaya is set with agar-agar powder and mung bean starch. This cake doesn't melt, even in a heat wave!

pandan kaya cake
(For one 20 x 12 cm cake)

  • 10 g castor sugar
  • 45 g egg yolks
  • 50 g corn oil
  • 45 g full-fat milk
  • 8 drops pandan paste
  • 50 g cake flour
  • 1/4 tsp baking powder
  • 1/16 tsp salt
  • 105 g egg whites
  • 1/8 tsp cream of tartar
  • 40 g castor sugar
  • 50 g young pandan leaves
  • water
  • 1/2 tsp white agar-agar powder
  • 40 g sugar
  • 25 g unsalted butter
  • 1/8 tsp salt
  • 120 g pure coconut milk, freshly squeezed
  • 35 g white  hun kwee  flour
  • 5 drops pandan paste
  • 1 big drop egg yellow food colour

  1. TO MAKE CAKE, trim 5 mm thick corrugated cardboard to fit sides of 23 x 15 cm cake pan. Wrap each piece of cardboard in aluminium foil, shining side facing out. Line bottom of 20 x 12 x 7.5 cm cake pan with 2 layers of parchment paper.

  2. Preheat oven to 160°C. Measure ingredients for cake as detailed above.
  3. Whisk 10 g castor sugar with egg yolks till dissolved. Add corn oil. Whisk till just combined. Add milk. Whisk till just thoroughly mixed. Add pandan paste, 6-8 drops, to make yolk mixture's colour look like pandan leaves. Mix thoroughly. Sift cake flour and baking powder into mixture. Add salt. Whisk till just thoroughly mixed.

  4. Separately whisk egg whites till frothy. Add cream of tartar. Whisk till thick foam forms. Gradually add 40 g castor sugar whilst still whisking. Continue to whisk till firm peak stage.

  5. Thoroughly whisk yolk mixture. Add egg whites in 3 batches. Mix with whisk till almost even after each addition. Scrape down and fold with spatula till just evenly mixed, banging mixing bowl against worktop 2-3 times.

  6. Pour batter into 20 x 12 x 7.5 cm cake pan, slowly and from about 30 cm high. Jiggle pan till batter is level, tapping pan against worktop 2-3 times.

  7. Place cake pan holding batter in 23 x 15 cm cake pan. Tuck cardboard between 2 pans. Bake in bottom of oven till middle of cake doesn't squish when pressed gently, 40-45 minutes.
  8. 3 incredibly soft pandan kaya cake layers
  9. Remove pans from oven. Remove cardboard and outer pan. Drop pan holding cake from about 30 cm high, once. Invert pan onto wire rack. Leave till just cool. Unmould cake and remove parchment paper.

  10. Slice cake horizontally with serrated knife into 3 layers.

  11. Wash and dry cake pan. Line pan with aluminium foil with some overhang.

  12. TO MAKE KAYA, rinse pandan leaves. Cut 5-6 cm long. Grind in food processor with 30 g water till fine. Press to yield about 40 g pandan juice. Top up with water to make up 340 g.

  13. Place 340 g pandan water in a small pot that retains heat well. Sprinkle agar-agar powder into water. Add sugar, unsalted butter, and salt. Set aside for 30 minutes or longer.
  14. Place coconut milk in a bowl. Add hun kwee flour. Stir thoroughly. Refrigerate till ready to use.

  15. After cutting cake and prepping cake pan as detailed above, heat and stir agar-agar mixture till agar-agar powder dissolves completely. (Mixture is now very hot but not boiling.) Turn off heat. Add coconut milk mixture. Stir thoroughly. Add 5 drops pandan paste and 1 big drop egg yellow food colour. Stir thoroughly.

  16. Turn on heat to medium-low. Cook and stir agar-agar mixture till thick enough to coat sides of pot thinly. Turn off heat. Stir till residual heat dissipates. (Mixture should now be thick enough to coat sides of pot thickly but thin enough to flow smoothly.)
  17. TO ASSEMBLE CAKE, place what was top part of cake in cake pan, cut side up. Pour 140 g kaya into pan. Tilt pan from side to side and swirl kaya to form even layer. Wait till kaya layer thickens slightly, about 60 seconds (less if it's cold where you are). Place what was middle part of cake on kaya layer. Make kaya layer as before. Wait 30 seconds or so. Top with what was bottom part of cake, cut side up. Make kaya layer as before.

  18. Leave assembled cake on wire rack to cool down. Refrigerate, covered, till ready to serve and kaya is firm.

  19. To serve, unmould cake and trim 1 cm from all edges. Transfer to serving plate. Leave till cake is at room temperature, covered. Cut and serve.