Ingredients

2 teaspoons Dijon mustard 

1/4 teaspoon sugar 

1 teaspoon minced shallot (optional for vinegar variation) 

1/4 cup white balsamic vinegar or fresh lemon juice (from 2 to 3 lemons) 

3/4 cups extra-virgin olive oil 

Coarse salt and freshly ground pepper 

Preparation

Whisk together mustard, sugar, and shallot if using. Whisk in vinegar or lemon juice, then oil in a slow, steady stream. Season with salt and pepper.