150gegg whites (room temperature)from egg weigh 58-62 grams with the shell
55glight brown sugar
1tsplemon juiceor vinegar, or 1 tsp cream of tartar
Instructions
Make sure your chiffon cake pan does not have a non-stick coating or your cake will not rise. The cake needs to cling to the side of the pan to rise tall
I strongly suggest to weigh the ingredients including the egg yolks and the whites because size of eggs may vary
Get the eggs out of the fridge and separate them when they are still cold. They are easier to separate when they are cold. Let the yolks and the whites come to a room temperature, this may take about 30 minutes or so
Preheat the oven to 330 F (165 C) for conventional oven, 310 F (160 C) for convection oven
Prepare the gula merah/Melaka syrup:
You can use gula merah or gula aren. They usually come in blocks. Cut them into smaller pieces so they melt faster. Put the gula merah and coconut milk in a saucepan. Let them heat over medium-low and keep stirring until the sugar melts. Strain the mixture. Let it cool down to at least lukewarm
Prepare the cake batter:
In a separate bowl, whisk the egg yolks, cooking oil, gula merah syrup. Sift in the cake flour and salt into the batter. Whisk to mix into a smooth batter. Set aside
Prepare the meringue:
Beat the egg whites on medium speed until frothy, add cream of tartar or lemon juice/vinegar and whip until it turns whitish and air bubbles are fine. Gradually add the light brown sugar as you beat, in 3 batches. I beat them at medium speed (speed 6 on Kitchen Aid). This will take a bit longer compared to beating at high speed. I used to do higher speed (speed 8), but the meringue is smoother and nicer when I maintain the speed on 6 and much more stable too. I highly recommend stopping several times to check on the consistency and scraping the sides of the bowl to make sure no sugar left on the side of the bowl. Whip until you reach a stiff peak but still have a slight bent on the tip. Then lower the speed to 4 and whip for 1 minute to even out large bubbles and stop beating
Fold meringue into the cake batter:
Gently fold 1/3 of the meringue into the thick batter. Using a whisk, using a cutting motion and fold over to mix. Repeat this motion several rounds. Continue on with the second 1/3 of the meringue again to mix. For the last 1/3 of the meringue, use a rubber spatula instead to ensure you get all the batter at the bottom of the bowl mixed in as well. Use a cut down in the middle and fold-over motion to fold gently but quickly. Make sure you don't see any more white meringue. The mixture should be fluffy and voluminous.
Pour the batter into an UNGREASED chiffon cake pan. Use a chopstick to draw a zig zag on the cake batter to pop any large air bubbles that are trapped inside and also to even out the batter. The large air bubbles will create large holes in the crumbs later. Gently drop the cake pan from about 10 cm height on the counter 2-3 times. Use a skewer to draw a zig-zag to pop bubbles inside the cake batter
Bake the cake:
Put the chiffon pan in the middle rack and let it bake for 55 minutes to 1 hour. The time is just for reference. Your oven may need less or more time to bake.
Test for doneness:
I know this is weird to say, but it's actually "safer" to overbake chiffon cake than underbaking. Underbaking tends to cause the cake to collapse. Start checking for doneness at around 50 minutes. The surface should be dry to touch and bounce back slightly when you gently press on it. If you insert a skewer towards the center of the cake, it should come out clean. If not, bake for another 5 minutes
Don't be alarmed if your cake has some cracks on top. What you are looking at will become the bottom of your cake. I know many people mind it a lot and make a big fuss when the top of the chiffon cake cracks, but actually it's not a flaw.
Cooling:
Drop the cake pan from about 10 cm height on the counter several times to prevent shrinkage when you pull the cake out of the oven. Then carefully invert the pan upside down immediately. Please don't be tempted to remove it from the pan if it's still warm. It takes about one to two hours to cool down completely
Once it's cool down completely, use a spatula knife to run through the edge and the outer center of the tube to help release the cake. Gently push the base to lift the cake out. Use the knife again to run through the base of the pan and then carefully release the cake
I suggest that you wait for 24 hours before serving the cake (if you can wait). The flavor always gets better the next day compared to when you serve it on the same day
How to store:
Let the cake cool down completely. Store the cake in an air-tight container for up to 3 days at room temperature. Do not refrigerate the cake because the cold air dries out the cake. It is better to freeze them for longer storage
Can you freeze chiffon cake? Yes! They actually freeze well. I have done it all the time with no adverse effects. I slice each cake and wrap it individually with a cling wrap and put inside a freezer-friendly container or zipper bag. Push all the air out and seal the bag. They can be kept frozen for one month. Simply thaw at room temperature and they are as good as new