How to Use Up Leftover Egg Yolks: Chewy Lemon and White Chocolate Cookies Recipe by Helen | Sep 17, 2013 | Cakes and Biscuits, Family Activities, Food | 35 commentsThe perfect recipe to use up leftover egg yolks Egg yolk recipes are thin on the ground, unless you’re keen to make a homemade custard. And let’s face it, who wants the bother of making a custard (or one step further, an ice cream recipe) when...