Begin by combining all dressing ingredients in a small bowl. Mix them well until fully combined. Once mixed, set the dressing aside to allow the flavors to meld together.

Thinly slice the onion and place the slices in a bowl of cold water. This step helps to mellow the sharpness of the onion flavor.

Cook the pasta al dente according to the package directions. Once cooked, run the pasta under cold water to halt the cooking process and cool it down. Drain and set aside.

Take the cucumber and cut it in half lengthwise. Use a spoon to remove the seeds from each half. Then, slice the cucumber into thin slices to add freshness and crunch to the salad.

In a large bowl, combine the prepared pasta, onion slices, cucumber slices, and any other ingredients you wish to include. Pour the dressing over the top and toss everything together until well-coated. Allow the salad to sit for at least 40 minutes before serving to enhance the flavors and create a more cohesive dish.