This is a perfect dipping sauce for our Steamed Artichokes. It also makes a wonderful spread for sandwiches.
Combine egg and a pinch of salt in the bowl of a food processor; blend until foamy and pale. Add oils, a few drops at a time, then the rest in a slow steady stream. Add lemon juice; blend briefly. Add salt and more lemon juice to taste. Refrigerate until needed. Garnish with strips of zest.
Raw eggs should not be used in food for pregnant women, babies, young children, or anyone whose health is compromised.