Common ingredients include cucumbers, onions (such as red or sweet onions), tomatoes, mayonnaise, sour cream or Greek yogurt, vinegar (such as apple cider vinegar or white vinegar), sugar, salt, ...

Peel the cucumbers if desired, and then slice them into thin rounds. Cut the tomatoes into bite-sized wedges. Thinly slice the red onion. Prepare the dressing: In a large bowl, whisk together the ...