Marinated Cucumber, Onion, and Tomato Salad

This easy cucumber, onion, and tomato salad is perfect for a warm summer day.


    • 1 cup water
    • ½ cup distilled white vinegar
    • ¼ cup vegetable oil
    • ¼ cup sugar
    • 1 teaspoon salt, or to taste
    • 1 teaspoon freshly ground black pepper, or to taste
    • 3 cucumbers, peeled and sliced 1/4-inch thick
    • 3 tomatoes, cut into wedges
    • 1 onion, sliced and separated into rings


  1. Gather all ingredients.
  2. Whisk water, vinegar, oil, sugar, salt, and pepper together in a large bowl until smooth.
  3. Add cucumbers, tomatoes, and onion and stir to coat.
  4. Cover bowl with plastic wrap; refrigerate for at least 2 hours.