1 lg. onion
2 lg. cucumbers
1/2 c. vinegar (apple cider)
Salt
Pepper
1/2 c. water

Slice onion thin. Separate onion into rings. Place in deep bowl. Slice cucumbers thin; place in bowl; mix. Add 1/2 cup apple cider vinegar, 1/2 cup water, and salt and pepper to taste. Chill before serving. To chill faster, put ice cubes on top of salad and mix in place of water.

What is really great about this, is that if you have leftover onions from the salad you can put them over mashed potatoes. So good.