Ingredients

2 large egg yolks 

1 teaspoon Dijon mustard 

2 anchovy fillets, minced 

1/4 cup grated Parmesan 

4 teaspoons fresh lemon juice 

1 cup vegetable oil 

Coarse salt and ground pepper 

Preparation

Place egg yolks in a food processor. (To avoid using raw eggs, substitute yolks from pasteurized eggs.)

Add mustard, anchovies, Parmesan, and lemon juice. Pulse ingredients until well combined.

With motor running, add oil in a slow, steady stream (mixture should become thick and emulsified). Season with salt and pepper.

Refrigerate in an airtight container, up to 1 week.