Egg yolk mixture: in a large bowl, whisk egg yolk, milk, vegetable oil until evenly combined. Then add cake flour and baking powder, salt, and whisk to make sure there are no lumps.
Step 3
3
Egg white mixture: in another large bowl, add the egg whites, sugar, and tartar powder, and beat until you see hard peaks when lifting the mixer up.
Step 4
4
Take about ¼ of the egg whites and fold them into the egg yolk mixture, then repeat with the remaining egg whites until the batter is evenly combined.
Step 5
5
Transfer batter to the prepared baking pan and smooth the top with an offset spatula.
Step 6
6
Bake 375°F(190°C) for 45 mins until light golden brown. Let cool completely.
Step 7
7
Make the cream filling: in the bowl of a stand mixer, beat heavy cream and sugar at medium speed until pale and fluffy
Step 8
8
Slice the cake horizontally into 3 parts. Spread cream filling evenly on each cake layer and over the cake surface.
Step 9
9
Garnish the cake with slices of green apples, strawberries, peaches, kiwi, grapes, or fruit of your choice.