Combine the mustard and vinegar in a bowl and slowly whisk in the olive oil to form an emulsion. Add the garlic, thyme, Worcestershire sauce, season to taste with sea salt and freshly ground black pepper and combine well.
⅓ cup Dijon or homemade mustard, 2 tbsp red wine vinegar, ¼ cup olive oil, 1 garlic clove, ½ tsp thyme, ½ tsp Worcestershire sauce, Sea salt and freshly ground black pepper to taste