Put 6 anchovies in oil, 2 egg yolks, 3 garlic cloves, and 1/4 cup lemon juice into a food processor. Pulse until the mixture is smooth and creamy, stopping to scrape down the sides as needed.
Add 2 teaspoons Dijon mustard and pulse briefly to combine.
With the food processor running, slowly drizzle in 1/2 cup olive oil until the dressing thickens and emulsifies; stop and scrape the sides if necessary.
Add 1/2 cup grated Parmesan cheese and pulse just until evenly combined and smooth.
Transfer the dressing to an airtight container. Serve immediately or store in the refrigerator.
Notes
Notes
*If you don't want to use raw eggs, greek yogurt or mayonnaise is a good substitute.