You have myriad flavour options when making your own dressing: You can add ingredients such as chopped shallot, fresh herbs or even honey to sweeten.
The general ratio for a vinaigrette is 3 parts oil to 1 part vinegar but use these numbers as a guideline and rely on your own taste.
50 millilitres white vinegar
1 teaspoon Dijon mustard
salt and pepper
150 millilitres olive oil
Combine vinegar, mustard, salt and pepper with a whisk in a small bowl. Gradually pour in the olive oil and whisk to a smooth and creamy emulsion.
Taste and adjust flavours as necessary.