My boys just love cucumbers. If you can get fresh ones from your local farmers market it makes it even better. I sometimes add cherry tomatoes if I can get them for the FM and Jackson likes to sometimes sprinkle on fresh shredded Parmesan cheese.
1 medium cucumber, sliced with peel
1 small onion, sliced
2 teaspoons salt
2 Tablespoons sugar
2 Tablespoons vinegar
1 cup cold water
1/4 teaspoon pepper
Mix all ingredients together and chill before serving.