For some readers, Cristina Potter will need no introduction. She writes a blog that is faithfully scrutinized by hundreds of thousands of readers, and was voted the world's best food blog by the London Times. Called Mexico Cooks, she writes about the wonders of this country, principally culinary (but also artistic, floral, musical, etc.). Here she is, slaving over a hot stove, on a recent afternoon in San Miguel de Allende. I had the pleasure of attending a feast prepared by her and several friends of the hotelier Diane Kushner. Cristina's mole is unbeatable.