russian apple pie cake with caramel sauce

cake:
5 eggs
1 c. sugar
1 c. flour
1 t. cinnamon
2 t. baking powder
1 t. vanilla
3 apples, peeled and diced

in large bowl, beat together eggs and sugar for 2 minutes. add flour, baking powder, cinammon, and vanilla; stir until combined. grease an 8 x 8" pan. pour 1/3 of the batter in the pan, spread all the apples on top, then pour the rest of the batter on top. cook at 325 for 35-40 minutes. serve warm with caramel sauce

caramel sauce:
1 c. sugar
1/2 c. butter
2/3 c. evaporated milk
2 egg yolks
1 t. vanilla
1 t. flour

melt butter and sugar over medium heat. whisk milk into mixture; add egg yolks and mix well. add flour and vanilla. stir until thick and remove from heat. you'll want to lick the pan. and maybe drink the sauce. it's that good.