Using only a handful of ingredients, this easy-to-make chicken salad is packed with protein and makes for a satisfying lunch or a light dinner. In this video, EatingWell shows you how to make cucumber-chicken salad with cooked chicken, chopped onion, and the tangy flavor of cider vinegar. Keeping well for up to three days, this creamy salad is even better after being made ahead and chilled in the fridge.