1 tablespoon lemon juice or sherry or white wine vinegar
1cup neutral oil, like grapeseed or corn, or extra virgin olive oil, or a combination
Instructions
Put the yolk or egg, mustard, garlic, salt, pepper and lemon juice or vinegar in the container of a food processor and turn the machine on.
While it’s running, add the oil in a slow, steady stream. (Your food processor should have a teeny hole you may never have noticed in the insert — the “food pusher” — in the top; if it doesn’t, you might want a different food processor.). When an emulsion forms you can add it a little faster. (Again, the little hole makes this unnecessary.)