Cut up the onion and tomatos. Cover and refrigerate for several hours before serving. Smashed cucumbers release different flavor compounds. Cut the cucumbers in half and then slice into bite size pieces. Place all vegetables in large bowl. Combine all in bowl and refrigerate for 2 plus hours. Can be kept in the refrigerator for several days. Chef John's salad is a great summer side dish and pairs perfectly with grilled meat or seafood. Pour entire bottle of dressing over, stir. DIRECTIONS.