Soak the onions in cold water for about 5 minutes.
Clean the cutting board, and slice the cucumber and kiwi into thin slices.
To serve, layer the kiwi and cucumber on the plate by overlapping each piece. Drizzle evenly with olive oil and season with a little Maldon salt and black pepper. Zest the lemon and squeeze a few drops of lemon juice over the plate.Drain the onions on paper towel and spread them around the plate with the fresh basil leaves. Enjoy right away.