The food lab better home cooking through science ( PDFDrive ) 980

1. If using the onion, place in a medium bowl and cover
withcoldwater.Setasidefor30minutes.
2. Meanwhile, in a large bowl, toss the tomatoes with the
salt. Transfer to a colander or strainer set over a large
bowlandsetasidefor30minutes.
3.Combinethevinaigrettewith2tablespoonsofthejuices
fromthetomatoesinalargebowlandwhisktocombine
(discard any remaining juices). Whisking constantly,
slowly add the olive oil in a steady stream to emulsify.
Draintheonions,ifusing,andaddtothebowl.Addthe
tomatoes, cheese, and basil, season with plenty of
pepper,andtosstocombine.Serve.