Deep Butter Cake

Directions

1. 1
   Beat egg whites until stiff.
2. 2
   Combine flour and baking powder.
3. 3
   Beat butter and egg yolks until thoroughly combined, add sugar and powdered sugar, beat on high until a lemon color.
4. 4
   About 5 minutes.
5. 5
   Add flour & milk alternately, beginning and ending with the flour.
6. 6
   Add the vanilla and fold in the egg whites.
7. 7
   Pour into greased and floured 9x13 cake pan.
8. 8
   Bake 300 degrees 1 hour.
9. 9
   Take out of oven and sprinkle with powdered sugar, cover with a dish towel until cool.
10. 10
    Do not over bake.