6 egg yolks
1/2 lb. butter
1 c. sugar
1 tbsp. lemon juice
1 tsp. vanilla
2 tsp. baking powder
2 c. flour, sifted

Combine sugar and butter; mix well. Add egg yolks, vanilla, lemon juice, flour and baking powder, beating continuously until well blended. Bake in greased and floured 9" tube pan for 3/4 of an hour at 375 degrees.