Place oven rack on the 4th level of your oven. Every oven is different, so make sure to place your rack in which your cake will not be too close so the top of your cake will not burn.
Grease bottom of an 2 (two) 8 " pan with oil and line it with wax paper. Prepare 2 pans and cover it tin foil. You will use this as stand for the lined pan during baking. Set the pan aside.
Put yolks, sugar, salt,milk vanilla extract in a large bowl, Mix ingredients completely and sift through cake flour. Gently mix until all the ingredients are incorporated. Do not use electric mixer. DO not overmix batter or your cake will be hard.
Preheat oven oven at 305 F.
In a separate bowl, add in the egg whites, sugar and cream of tartar . Mix using an electric mixer and mix until egg stiff peaks. Add mixture to the yolk batter and gently fold together. DO NOT OVERMIX.
When ready, divide batter into 2 prepared 8 inch pan. Place the pans on top of the foil cover pan and put them on the large sheet pan. Pour hot water and bake Mango Cake for 439-43 minutes.
Please see video