1 c  Sugar
1/2 c  Cake flour,SIFTED
1/2 c  Unsweetened cocoa powder
1/4 ts Salt
8    Egg whites
1 ts Cream of tartar
1 ts Vanilla

1. Preheat oven to 350F. Position oven rack in bottom third of oven. Line
bottoms of two 9″ heart-shape cake pans with waxed paper. Sift 1/2 cup
sugar, flour, cocoa powder and salt onto clean sheet of waxed paper.
2. Beat whites in bowl at medium speed until foamy. Add cream of tartar,
vanilla. Beat in remaining sugar, 1 tablespoon at a time, until soft peaks
form.
3. Sift half of flour mixture over egg whites. Fold in with rubber spatula
just until incorporated. Repeat with remaining flour mixture. Divide batter
between prepared pans. Smooth tops.
4. Bake in preheated 350F. oven for 20 minutes or until cake springs back
when gently pressed with fingertip and sides of cake just begin to pull
away from pan. Invert pans onto wire racks. Elevate cakes by placing
corners of racks over filled 1 pound cans. Let cakes cool, upside down in
pans, on elevated racks, for 1 hour. then run small metal spatula or knife
between edge of cake and pan. Turn cake out onto rack to cool.
5. Choose topping, sandwiching layers as directed. Or, for filled cake, cut
heart from center of one layer, leaving 1 1/2″ border all around. Spread
other layer with some of Cherry-Yogurt Filling; top with cutout layer. Fill
hollow with remaining cherries. Refrigerate.