Shallots are part of the onion family and have a mild onion-garlic flavor. In place of 3 to 4 shallots, use 1 medium onion plus a pinch of garlic powder or (if you like the taste of garlic) 1 minced garlic clove.
Its slight nutty flavor and lip-puckering tartness make this my go-to dressing for salads and steamed vegetables. And if you run out, whisk together another batch in mere minutes! —Kathleen Specht, Clinton, Montana