Tomato Cucumber Salad

1/3 c red wine vinegar
1 tbsp white sugar
1 tsp salt
2 large cucumbers, peeled, seeded, and cut into 1/2-inch slices
3 large tomatoes, seeded and chopped
2/3 c chopped red onion
2 tbsp olive oil
Salt and pepper to taste

1. In a large bowl, combine vinegar, sugar, and salt. Mix in cucumbers and marinate for 1 hour, stirring occasionally.

2. Gently toss tomatoes, onion, and olive oil with the marinated cucumbers. Season with salt and pepper.