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Another day, another viral recipe.

The "cloud cake" requires three core ingredients:

•  Whites from three eggs
• One teaspoon of white vinegar (to get rid of the eggy smell)
• 20g of refined sugar

Sounds a lot like meringue, but the result comes out quite different.

How to

Combine everything into a bowl, and whip it into firm and airy foam.

To check that it's the right consistency, insert a toothpick into the mixture. The toothpick should be able to stand.

Shape it into a dome -- after removing the toothpick -- and add any toppings you want. The recipe suggests almond flakes.

Bake it at 160°c for 20 minutes.

Dust it with icing sugar (or not, it's up to you).

The result should look like this:

You can watch the process here.

But not really

One Kellie Xiu Lian shared her successful attempt at the recipe:

Others, however, met with less luck.

In response to the above result, another baker said that she faced the same problem, but did not know what had caused it.

A third user said that hers collapsed as well.

There are a couple of factors that could have affected the outcome:

1. The amount of whisking to get the egg whites aerated just right, which requires some trial and error if you're an inexperienced baker.

2. Too low a temperature, which leads to excess liquid and the foam collapsing.

Top image via 李冰冰/Facebook