10x5 deep tube pan
1 tsp. double-acting baking powder
1 2/3 c. sifted cake flour
1 tsp. lemon extract
1/2 tsp. salt
1 c. sifted granulated sugar
1/2 c. hot water
10-11 egg yolks (7/8 c.)

Set oven at 375 degrees to preheat. Sift together flour, salt, baking powder 3 times. In large bowl of mixer, beat yolks on No. 10 speed for 2 1/2 minutes. Add hot water gradually while beating, about 1 minute, then continue beating until very thick and light, about 6 1/2 minutes longer. Beat in flavoring, then sugar, sprinkling in a tablespoon at a time, taking 3 minutes. Scrape bowl gently toward beaters with rubber scraper a few times.

Turn to No. 2 speed. Sprinkle in flour mixture evenly and quickly, folding over and over with rubber scraper, about 1 1/2 minutes. Remove from mixer, cut through batter, folding over and over for a few times with rubber spatula. Turn into ungreased pan. Bake about 40 minutes or until done. Invert, leg hang until cold. Remove.