Wisk all ingredients except olive oil. Then slowly drizzle olive oil in while whisking quickly to incorporate the oil. We sometimes put it all into a jar and shake it very well until blended, then refrigerate until needed.
It's recommended to let it sit a few hours, but it can be used right away. To store, pour into an air-tight jar and store in the refrigerator for up to 1 week. You can also freeze it for up to 2 months or use a canning method to store for up to 1 year.