3 c. cake flour
1/2 c. self-rising flour
3 1/2 c. sugar
2 c. butter, softened (4 sticks)
9 lg. eggs
1 1/3 c. sour cream
1 tsp. lemon extract

Preheat oven to 300°F. Heavily grease and flour a 10 inch tube pan. In a mixing bowl or on a piece of wax paper, stir together both flours.

In a large bowl, cream butter and sugar. Beat in eggs. Add alternately the flour and sour cream, starting and ending with the flour. Beat for 3 minutes. Add in the lemon extract. Spoon the batter into tube pan.

Bake for 1 hour and 45 minutes or until a toothpick comes out clean. Turn onto a wire rack to cool.