Cucumber, Onion, and Tomato Salad Postcards Magazine 8 years ago Share Ingredients 3 tomatoes 3 cucumbers 1 onion 1/2 cup apple cider vinegar 1 tsp cracked pepper 2 Tbs sugar (optional) 2 tsp salt 1 cup water 1/4 cup olive oil Directions Mix well…that’s it. Let it chill for 1-2 hours.