Marinated Cucumber, Onion, and Tomato Salad
Ingredients:
1. 3 medium cucumbers, peeled and sliced
2. 1 medium onion, sliced into rings
3. 3 medium tomatoes, cut into wedges
4. 1/2 cup vinegar
5. 1/4 cup sugar
6. 1 cup water
7. 2 tsp salt
8. 1 tsp black pepper
9. 1/4 cup oil
10. 1 tsp chopped fresh mint (optional)