Use this recipe when making our Mussels Remoulade or other shellfish dishes.
Place egg, yolks, salt, sugar, and pepper in the bowl of a food processor fitted with the plastic blade. Process until well blended.
With the machine running, add olive oil, dribbling slowly. Add 1 tablespoon lemon juice, then dribble in vegetable oil. Taste for seasonings, adding more lemon juice, salt, or pepper if needed.
Stir in capers, mustard, herbs, and shallots and serve immediately. (The sauce can also be made ahead and refrigerated in an airtight container for up to 2 days.)
If you are concerned about using raw eggs, use store-bought mayonnaise and start at step 3.