This finger lime is such a hot seller at many farmers markets that it's now referred to as ''citrus caviar'' because the small round interior vesicles pop in your mouth with tart lime flavor. Chefs the world over are finding creative uses for finger limes, which add unique texture and a special ''zing'' to dishes. Not your typical lime, this elongated citrus doesn't peel into segments like you are used to. Instead, when you cut it open, hundreds of little balls called vesicles pour out. They look and feel like caviar but have a sparkling lime flavor. How's that for a unique addition to your garden and kitchen!