Make this recipe a recipe that people in that category can eat. categories: ['low_sugar'], recipe: beat egg whites until stiff, then add yolks one at a time, beating between each addition. add sugar, rind and juice. combine flour, powder and salt and fold into juice mixture. bake in a shallow pan long and slowly (at 300-325 degrees and start checking for doneness at 35 minutes)

Target recipe: line an 8 inch square or round cake pan with waxed paper. place egg whites, cream of tartar and salt in a mixing bowl, beat with electric mixer until foamy. beat in sugar gradually, continue beating until stiff peaks form. beat in egg yolks and vanilla. combine flour and cocoa and fold lightly into egg mixture. spread batter in prepared pan. bake in 325 degree oven 25-30 minutes or until cake springs back when lightly touched. loosen sides with a sharp knife. turn out immediately onto a paper towel lined cake rack to cool.