The dog ate my cake (and survived both the chocolate and me). So here’s a picture of the mayo. And the dog.
I didn’t intend to make mayo, but ignored a golden rule for making hard boiled eggs (fresh eggs, what was I thinking?! See link below) and wrecked the whites late Friday night during the peeling process. So I succumbed to egg salad. Then I realized we had no requisite condiment. I did however have more eggs, oil, and a stale but still useful lemon. Ok then.
I mostly followed the recipe below. Except I used one whole egg and a hand blender. Take your time, these ingredients certainly do in order to emulsify. (Also below a link to the chocolate cake – my only slice was delicious! Separate eggs when they’re cold.)