Marcus Wareing served up a tasty French vinaigrette with Dijon mustard and white wine vinegar on Marcus Wareing Simply Provence.
The ingredients are: three parts olive oil, one part white wine vinegar, 1 tsp Dijon mustard, 1 pinch of salt and ground pepper.
See recipes by Marcus in his book titled: Marcus’ Kitchen: My favourite recipes to inspire your home-cooking available from Amazon now.