|Source: Adapted from Full Moon Feast|
|Prep time: 10 minutes||Cooking time: 30 minutes||Total time: 40 minutes|
A healthy mayonnaise you can feel good about. A lighter olive oil produces a lighter mayonnaise; a green and fruity first-press olive oil will have a deeper, more olive-y taste.
Put the egg yolk in a heavy bowl. Put the bowl on a damp cloth to steady it. Whisk in a few drops of olive oil VERY SLOWLY (depending on how slowly you add the oil, your mayonnaise might be thick or a little runny – but still totally useable!). Keep whisking in a few drops at a time until you have poured at least a tablespoon, then begin pouring in a slow stream and whisking until you have incorporated all the olive oil.
Whisk in the mustard, salt, pepper, and vinegar. Taste and adjust the seasonings.