Marinated Cucumber and Cherry Tomato Salad

Ingredients

• 3 medium cucumbers, peeled and sliced ¼ inch thick
• 1 pound cherry tomatoes, cut in half
• 1 medium red onion, sliced and separated into rings, optional
• ½ cup red wine vinegar
• ¼ cup sugar
• 1 cup water
• ¼ cup oil
• Sea salt and fresh ground pepper

Instructions