We've long loved the fruity extra-virgin olive oils produced in California, but limited production on small farms means they're often too expensive to use as everyday oils. California Olive Ranch has fixed that problem: This company works with 67 farms in Northern California that use high-density planting—a Spanish method promoted by the University of California at Davis's Olive Center—that lets farmers quickly harvest and press olives at their peak. The result is some of the freshest single-varietal oils and blends we've tasted. And, at $10 per bottle, we can afford to use them with abandon.