Instructions

1. Beat butter for 5 minutes at high speed.
   Add sugar and continue beating for another 5 minutes.
   Add egg yolks one at a time at low speed…
   Add flour and baking powder. (Do not over beat!)
   Whisk egg whites till stiff in a seprate bowl and add into cake batter.
   Stop beating once the egg white has incorporated.
   Grease a 8″ pan.
   Bake at 345 F or 175 C for 1 hour.