Wrexham How exactly does one cure an egg yolk? And once cured how does it taste? These were just the tip of the iceberg of questions in my head when I read the article on cured egg yolks in Bon Appetite magazine a few months ago. I was so intrigued! Eggs are the most amazing food in the world, after all. There was no question about it, I had to try this. Fortunately, last week I tested a layer cake recipe (soon to come!) that called for six egg whites, no yolks, so I had an abundance of egg yolks on my hands.