5 eggs. separated
2 tbsp. cold water
1 1/2 c. granulated sugar, sifted 4 times
1/2 c. boiling water
1/2 tsp. lemon extract
1/2 tsp. vanilla
1 1/2 c. sifted cake flour
1/2 tsp. cream of tartar
1/2 tsp. salt

Beat egg yolks and cold water in small bowl for 5 minutes. Add sugar to boiling water in pan and stir a few minutes to dissolve some of the sugar. Add sugar mixture to egg yolks and beat 5 minutes, changing to larger bowl when necessary. Add lemon extract and vanilla. Add cake flour to mixture and beat hard several revolutions of bowl. Beat egg whites until foamy and then add cream of tartar and salt. Beat until stiff but not dry. Fold into cake mixture.

Bake in 10 inch tube pan. Preheat oven to 275°F, place cake on lower rack and turn oven to 325°F.

Bake at this temperature about 25 minutes, then turn oven to 350°F and finish baking.

Bake cake 1 hour 15 minutes to 1 1/2 hours.