Put all of the ingredients into the jar and shake well.
Taste to see if you would like to adjust anything or add salt.
RECIPE NOTES
You may need to add a little sugar to this dressing depending on the acidity of the vinegar you use
If you have a "caramelised" balsamic it may be too sweet so add a teaspoon (or to taste) of lemon juice.
You can add garlic to this dressing if you like along with herbs such as basil or chopped parsley or even dill or tarragon.