Magic Custard Cake ( one batter 3 layers)

So, this is the Magic Custard cake that many people have been talking about lately..  and when I found youtube video of Mabel's Tart Magica, it actually went back to as early as Feb 2013.

one batter with 3 layers

Not overly sweet...with 3 interesting texture, you just love it when the moment you bite into it!

Recipe: Mabel Mendez, White On Rice Couple
Ingredients
113g unsalted butter
2 cups (480ml) milk
4 eggs, separated
4 drops white vinegar
1 and 1/4 cup (150g) confectioner's sugar
1 tablespoon (15ml) water
1 cup (115g) flour
1 teaspoon (5ml) vanilla extract
extra confectioner's sugar for dusting

Whisking..whisking...this way (using the hand whisk)

It's done , using pyrex dish.

Method
1.  Pre-heat oven to 325F and grease a 8"x 8" baking dish ( I used pyrex) and lay parchment paper for the base.
2.  Melt butter and set aside to slightly cool.  Warm the milk to lukewarm and set aside.
3.  Whip egg whites and vinegar to stiff peak. Set aside.
4.  Beat the egg yolks and sugar until pale and light. Mix in melted butter and the tablespoon of water for about 2 minutes or until well combined.
5.  Mix in flour until well combined. Slowly beat in milk and vanilla extract until all is well mixed.
6.  Whisk in egg whites gently, 1/3 at a time until all done ( hand whisk, refer method in the youtube)
7.  Pour batter into the pan and bake for 45-60 minutes or until the top is golden. It will looked slightly jiggly.  Let it cool completely, run a knife around the edges, invert it.
8.  Dust with icing sugar before serving.
note: I kept it in the fridge for 3 to 4 hours, it is good to have it when it is chilled.