Prepare the dressing: Pour water, vinegar, and oil into a screw-top container. Add salt, sugar, and pepper. Close the jar and shake until all the ingredients are combined.
Toss the tomato wedges with the chopped onion and place them in a salad bowl. Pour over the dressing. Vegetables should almost swim in the watery dressing.
Notes
Makes 1 portion. If you want more yields, simply multiply the amount in the recipe by the number of portions.
SERVING: This tomato salad is usually served as a light side dish to the main meal. Eat it with a salad or regular spoon, or use a fork. Serve immediately or chill the salad in the fridge.
For best results, use fresh, ripe tomatoes. Cherry tomatoes are also suitable for the salad.
You can add freshly chopped green parsley, a typical Czech herb, to the salad. Count about ¼ teaspoon of leaves per serving.