紫薯粉戚风蛋糕 Purple Sweet Potato Powder Chiffon

Purple sweet potato chiffon ( PSP powder version)
6" round cake mold

PSP powder 25g+hot water 50g;

Egg yolks 3(A), sugar 12g, corn oil 24g, milk 30g, cake flour 54g;

Egg whites 3(A), sugar 36g;

160 for 30mins