紫薯牛油杯子蛋糕 Purple Sweet Potato Butter Cupcakes

Purple sweet potatoes paste butter cupcakes. 全蛋打发的紫薯馅牛油杯子蛋糕，糖可以自行调整，因为此次的紫薯馅完全不甜，这次的杯子蛋糕有特意加多糖的份量哦。 

紫薯馅牛油杯子蛋糕Purple Sweet Potatoes Paste Butter Cupcake 

{材料Ingredients} 

无盐牛油245克 Unsalted butter 245g 

蛋糕粉200克 Violet cake flour 200g 

蔗糖160克 Cane sugar 160g 

紫薯泥160克 Purple sweet potato paste 160g 

鸡蛋5粒（A级）Eggs 5pcs (grade A) 

牛奶80毫升（2次放）Milk 80ml (add by 2 times) 

泡打粉½茶匙 Baking powder ½ tsp 

{做法Directions} 

1. 紫薯提前蒸熟做成紫薯泥备用, 把泡打粉加入蛋糕粉拌均待用。Purple sweet potato pieces steam for 25 mins or until soft, add baking powder to cake flour, set aside. 

2. 室温软化的无盐牛油加蔗糖搅拌至牛油蓬松颜色变浅时加入紫薯泥搅拌均匀后，鸡蛋一粒一粒地加入，每次搅拌均匀之后再加一粒直到加完为止。Whisk unsalted butter that melted in room temperature together with cane sugar until color slightly turn light, add in purple sweet potatoes paste and mix well again, follow by add in egg 1 pcs each, mix well each time only add in another egg until finished. 

3. 把蛋糕粉过筛后加入，用中低速1档搅打1分钟，高速3档搅打10分钟左右。Add in sifted cake flour, whisk at medium low speed 1 for 1 min, then at high speed 3 for about 10 mins. 

4. 颜色不够紫，再加紫薯泥和牛奶/紫薯粉½茶匙，转换成低速1档搅拌1分钟，把面糊倒入杯子蛋糕的模具中，再加适量的紫薯泥，再倒入适量的面糊，用筷子搅拌一下。Add more purple sweet potato paste or purple sweet potato powder ½ tsp to enhance the color, turn to low speed 1 to mix well for 1 min, pour the batter into cupcakes cup, ½ of the cup will do, then add in purple sweet potato paste, follow by another round of batter, mix well with chopsticks. 

5. 预热烤箱180°C， 烤18分钟左右即可（烤箱温度得自行拿捏）。Pre-heated oven 180°C, bake for 18mins (oven temperature adjust accordingly). 

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