淸水蛋糕

Recipe from Angel

I copied this from her Blog: 
(A)
3 egg yolks 蛋黄
1 whole egg 全蛋
50g corn oil 粟米油
(B)
50g low protein flour (cake flour) 低粉（蛋糕粉）

(C)
3 egg whites 蛋白
(D)
50g castor sugar 细砂糖
1g salt 盐

Method 做法：

1) Beat (A) till well mixed with an egg beater. 用打蛋器打匀(A)。
2) Sift in (B), mix well. 筛入(B)拌匀。

3) Whisk (C) till frothy, add (D) and beat till stiff peak. 把(C)打至粗泡，加入(D)打至干性发泡。

4) Fold in the egg white mixture to egg yolk mixture in 3 additions, mix till well combined. Scope the batter into paper cups till 60% full. 蛋白霜分3次和蛋黄糊拌匀，用小勺装进纸杯至6分满。
5) Bake in preheated oven at 150C for about 18-20mins. 烤箱预热150度，烤18-20分钟左右。