Ogura cake

yap - ogura cake1yap - ogura cake

65g corn oil ( replace with olive oil )
80ml milk

1/4 tsp salt ( i omit ) 
100g egg yolk
1 egg
65g cake flour
1 tsp vanilla extract( i omit )
200g egg whites
75g sugar
1/2 tsp cream of tar tar ( i omit )
170 for 40 mins
Bake the cake on the lowest rack of the oven with a tray of hot water below it. So the cake will be baked and steamed.