Brooklyn, New York's Sharon Pearlstein shares this refreshing fruit soup as a starter (or even dessert).
Working in batches, place mangoes, cucumbers, buttermilk, lime juice, and vinegar in a blender; puree until smooth. Season with salt and, if using, hot sauce. Refrigerate until chilled, about 1 hour. Serve gazpacho with lime wedges and basil, if desired.