Marinated cucumber, onion and tomato

Marinated cucumbers, onions and tomatoes, a delicious, light and refreshing salad perfect for summer or winter. What I love about this recipe is that you can serve chicken or any main dishes you want!!

Ingredients:

3 medium cucumbers, peeled and cut into 1/4-inch-thick slices
1 medium onion, chopped and divided into rings
3 medium tomatoes, cut into wedges
1/2 cup vinegar
1/4 cup sugar
1 cup water
2 teaspoons salt
1 teaspoon coarse freshly ground black pepper
1/4 cup oil
1 teaspoon fresh mint, chopped (optional)
Instructions:

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