The variety of domestic and foreign butters available today—at supermarkets, gourmet stores, and farm markets and directly from creameries both in this country and abroad—is immense. Of the hundred or so butters we sampled during the making of this issue, the following 30 impressed us with their distinctive flavors, textures, and colors. With few exceptions, these butters are free of the added colorings (such as annatto seed extract) and flavorings found in many mass-produced butters. Below, you'll find serving suggestions and recommendations for the best ways to showcase the attributes of these unique butters. Most can be purchased in the United States.