Foolproof Vinaigrette

This recipe is a pretty standard vinaigrette - with wine vinegar, shallot, and olive oil. This recipe demonstrates Cooking Concept # 36 - Emulsifiers make smooth sauces. The two emulsifiers in this salad dressing are mustard and a tiny bit of mayonnaise. It held as a single phase (not separate oil and vinegar phases) for at least 15 minutes - pretty impressive.

I generally shun commercial mayo. But here it was pretty smart, as it allowed the dressing to be highly emulsified while not having the dressing over-powered by mustard.