There are many flavours that can be added to enhance the flavour of a vinaigrette, the most common being mustard. Any type of mustard can be used, and its inclusion also helps the dressing remain emulsified, and therefore thicker, for longer. Other additions could include minced garlic, shallots or chopped fresh herbs such as parsley, dill, tarragon or chives. You could also substitute the white wine vinegar for sherry, cider or balsamic vinegars. Different oils could also be used from extra virgin olive oil or rapeseed, to something a little more unusual, such as hazelnut or avocado oil.