Over the years I have changed the recipe a smidgen, adding tomatoes and dill for another layer of flavor. I also like mixing in a little red onion along with a white or Vidalia onion.
Sometimes the simplest recipes are the best ones. This salad allows the garden fresh cucumbers and onions (and tomatoes) to shine.

Ingredients:

4 medium tomatoes diced or sliced the way you want them
2 medium cucumbers, peeled & sliced
2 onions, sliced and separated into rings
2 Tbsp. Vinegar
¼ c. Oil, I used Olive Oil
2 Tbsp. Sugar
1 tsp. salt
½ tsp. black pepper
2 tsp. minced fresh parsley.

Instructions:

Cut and set aside your cut up tomatoes, cucumbers & onions.
In your bowl or mason jar, pour in the remaining ingredients and mix or shake.
Toss in your cut up veggies and mix or shake until thoroughly coated.
Marinate 2hrs before serving.