♡大理石鸡蛋糕 Baked Marble Egg Sponge Cake♡

简单又好吃的*大理石鸡蛋糕 *
烘焙时，鸡蛋香味飘满屋~
初体验，开心蛋糕没回缩，
但是大理石纹不太明显，还要多磨练！~

材料：
(a)蛋白 3个
    砂糖粉 65克（我减至50克）

(b)蛋黄 3个
     全蛋 1个
     自发面粉 65克 (过筛)
     粟米油 50克

(c)可可粉 5克 + 温水 1大匙（混合均匀）

做法：
1.将(b)材料，蛋黄与全蛋搅拌均匀再加入粟米油拌均匀。
2.分次加入自发面粉，用刮刀轻轻混合均匀。
3.用打蛋器(mixer)将蛋白打至起泡再分次加入糖粉打发至硬性发泡（拿起来尾端坚硬挺起)。
4.将1/3 部份蛋白霜与面糊用刮刀混合均匀，再倒入其余的蛋白霜里拌均匀。
5.取出少许面糊与可可液拌匀成可可面糊。
6.将面糊倒入烤盘里，再把可可面糊倒入，用竹签或筷子随意搅拌一下，然后稍微敲一下让多余的气泡跑出来,这样烤出来的蛋糕才不会有洞洞。
7.送入预热的烤箱以170摄氏烤35~40分钟即可。（烤炉温度与时间供参考）
*我用较大的正方烤盘，所以用了食谱的双倍分量
*食谱参考于eileen の记事本

Ingredients：
(a) 3 egg whites
     65g icing sugar（I reduced to 50g）

(b)3 egg yolk
     1 whole egg
     65g self raising flour (shifted)
     50g corn oil

(c) 5g coco powder + 1 tablespoon warm water（diluted well）

Method:
1.Whisk all the ingredients (b)~ egg yolks, whole egg and corn oil in a large mixing bowl.
2.Add in sifted raising flour, mix well with spatula and set aside.
3.With another big bowl, add in ingredients (a)~ egg white and sugar (with 2~3 batches), whip it with mixer under medium speed until peaks form.
4.Add 1/3 of meringue into batter. Use spatula to fold in and slowly mix it well. Pour gradually the mixture into remain meringue, repeat the step, fold in again with spatula until well mixed.
5.Take out some batter mixed with diluted coco powder until it's form coco batter.
6.Pour the mixture into square shape mould, following with the coco mixture, use a chopstick or bamboo stick, stir slightly.
7.Bake it under preheat oven 170 celsius for 35~40 minutes.(Temperature and time for reference only)
*I used big square baking tray, so I double up the recipe.
*Recipe adapted from eileen の记事本