Move oven rack at the middle of the oven.
Preheat oven at 350 F.
Line 8 inch pan with parchment paper. (NON GREASE)
Put 6 egg in electric mixing bowl. Beat egg for 2 minutes and add in 1 cup of sugar. Beat egg for another 8 minutes.
Stop mixer and sift through flour and baking powder into the egg mixture . Fold in ingredients egg using a spatula making sure to scoop flour under the bowl. DON'T OVERMIX/ use folding method -meaning scoop mixture and bringing it on top.
Divide the batter into 2 equal part using a NON GREASED 8 INCH PAN / This pan is lined with parchment paper.
Bake sponge cake for 25- 28 minutes. Start checking at 25 minutes. Touch at the middle of the cake, and if cake doesn't bounce back, it is not done. Check with tooth pick. It is done when it come out clean.
When the cake is cooked, let it sit in the pan until it is cold to touch and scrape cake using a knife. Remove parchment and continue to cool.