One third of whisked egg whites mixed in by Cake and Cookie recipes on January 19th, 2013 · without comments Lemon Swiss roll mixture after mixing in one third of the whisked egg whites to the egg yolk, sugar and flour mixture.Share: Share on Facebook Share on Twitter Share on Google+ Share on LinkedIn™ Share on Pinterest Lemon Swiss Roll Recipe Leave a Reply Click here to cancel reply. Name (required) Mail (will not be published) (required) Website