Add olive oil, vinegar, mustard, salt, and pepper to a jar (or bowl).
Cover jar and shake vigorously until ingredients are combined (or whisk together if using a bowl).
Taste dressing, then adjust seasoning with additional salt and pepper, if desired.
Use immediately or store in your refrigerator for up to 5 days. Enjoy!
Notes
Servings - This recipe makes about 1 cup or 8 servings (2 tablespoons per serving).Salt - This recipe was developed using kosher salt. If you're using regular table salt, make sure to add it to taste. Otherwise, the vinaigrette may end up too salty.More Tips - Make sure to check out the info before this recipe card for lots of helpful tips, variations, and ways to use the dressing!