If you mean this one (it's called angel food cake here in the U.S.)
1 1/3 cups egg whites (takes approximately 10 large eggs)
1 1/3 teaspoons cream of tartar
1/4 teaspoon salt
1 1/2 cups granulated sugar, put through sifter twice
1 teaspoon vanilla
1 cup cake flour, sifted before measuring
Preparation:
Beat egg whites; add cream of tartar and salt when eggs are frothy. Continue beating until egg whites stand in peaks. Gradually beat in 1 cup of granulated sugar. Fold in vanilla. Sift the sifted and measured flour three more times; mix with remaining 1/2 cup of sugar. Fold flour mixture gently into batter until well incorporated.
Pour angel food cake batter into an ungreased 10-inch tube pan. Bake at 325° for 55 to 65 minutes. Remove from oven and invert pan (turn upside down, cake and all) until angel food cake is entirely cooled.
Then yes... Mrs. C does sit often since it's low in calories and fat... makes a great treat or desert... we serve it with strawberries (and whipped cream, thereby defeating the low calorie/low fat benefits)