Receta Purple Sweet Potato Chiffon Cake 紫薯戚风蛋糕
Here is another chiffon cake that I've baked with purple sweet potato. The cake turned out beautifully. It had a natural pink colour with the embedded purple cubes sweet potato. The cake was soft and cottony and had a subtle taste of sweet potato with every bite.
Purple Sweet Potato Chiffon Cake
Ingredients:
- 70g plain flour (sift together with corn flour)
- 2tbsp corn flour
- 3 egg yolks (about 55g)
- 40g sugar
- 60ml fresh milk
- 1/2 tsp lemon juice
- 100g purple sweet potato, mashed
- 60g purple sweet potato, cubes
- 50g canola oil
- Meringue
- 4 egg whites (about 165g)
- 1/2tsp cream of tartar
- 45g sugar
Method:
Wash and peel the sweet potatoes, cut into small chunks. Steam sweet potatoes for about 15 minutes or till soft. Blend 100g with 60ml milk to smooth paste. Dice remaining sweet potato to small cubes, set aside for later use.
Preheat oven at 165 deg C. Sift flour and corn flour together into a bowl and set aside.
Combine egg yolks and sugar in another bowl, mix well. Add sweet potato paste and lemon juice, mix well followed by oil and blend well. Sift in flour mixture the second time into egg mixture, mix well.
Make meringue - Combine sugar and cream of tartar. Beat egg whites until foamy. Add sugar mixture in 3 separate rounds beat until egg whites are glossy, with stiff peaks.
Fold 1/3 of egg whites into the yolk mixture. Then pour in the rest of the egg whites and fold gently until combined with a rubber spatula.
Pour 1/2 batter into the prepared a 21cm tube pan and sprinkle sweet potato cubes over it and cover with remaining batter . Gently bang the pan on the table top to release air bubbles. Bake at 2nd lower rack in the oven for about 50 minutes.
When the is done, remove from oven and turn the pan over. Leave cake to cool in pan.
预热烤箱致摄氏165度。面粉和栗米粉一起过筛到一个碗里，备用。番薯洗净去皮切块。以大火蒸约15分钟致软，拿出100克的紫薯和牛奶一起搅打成泥。剩余的紫薯切成小丁状，备用。
蛋白霜 - 用搅拌机把蛋白打致大起泡，细砂糖分3次加入，打致硬性发泡。
取出1/3蛋白霜与面糊翻拌均匀，再倒入剩余的蛋白霜，用刮刀轻轻翻拌均匀。
把烤模放进烤箱倒数第二层，烤约50分钟。
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Secret of Chiffon & Roll Cakes