I first tried aguachile when I was visiting Ajijic in Jalisco, Mexico. Ajijic is a quaint town next to Chapala Lake, the largest freshwater lake in Mexico. I fell in love with this spicy, cold dish, made with freshly caught shrimp marinated in a serrano-lime juice mixture and topped with fresh red onions, avocados, and cucumbers. This will keep for up to two days in the refrigerator but is best served within one hour. Serve it with tostadas on the side and an optional ice-cold Mexican beer to tame down the heat.