Recipe of the vinaigrette sauce.
Mandatory for a well-made tomato salad.
Required utensils:
- Tea spoon
 - soup spoon
 - some kind of glass or bowl
 
Required ingredients:
- Vinegar
 - Oil
 - Mustard
 
Optionals:
- Salt
 - Pepper
 
Recipe:
- Measure 1 soup spoon vinegar into the container
 - Measure 2 soup spoon olive oil into the container
 - Add some mustard to taste ~ ½ tea spoon for each soup spoon of vinegar
 - Stir vigorously so all three ingredients are homogeneously mixed
 
I prefer to use olive oil and Balsamic vinegar because I find I like the taste, but feel free to explore with your favorite ingredients. The important thing is the ⅓ - ⅔ ratio of vinegar to olive oil, which you can likely adjust depending on how strong you like your sauce.