separate egg, turn on baker to 330F
For white pan, add vinegar or lemon juice, and 72g sugar, beat white until stiff, but not very stiff like regular cake.
For yellow pan, add oil, milk, sugar(36g), beat around 1min. add flour and corn starch, beat 1 min again
mix 2 and 3 well from bottom to top
spread on the pan (11*17 in) with parchment paper, fall down three times to reduce bulbs
bake 10 mins
take out from baker. And cool down about 5 mins
beat heavy cream with sugar powder, and spread on the cake
roll the cake into a roll, keep the parchment paper on, and wrap the cake. Keep in fridge. Cut into pieces until serve
打发蛋白到湿性发泡