Preheat oven to 350 degrees.
Grease 8" cake pan.
Whisk eggs and sugar until pale and fluffy, then beat in butter until combined.
Stir flour into the mix then add apples, mix till just combined (do not over mix)
Pour into pan and bake for 40-45 minutes.
Remove and let cool, when cool turn out onto cake stand or plate. Dust with powdered sugar.