Ingredients

  • 1 pound asparagus
  • 2 large eggs
  • 1 tablespoon Dijon mustard
  • 1/2 teaspoon salt
  • 1 tablespoon red-wine vinegar
  • 1 cup vegetable oil
  • 1 1/2 tablespoons finely chopped shallots
  • 3 tablespoons finely chopped fresh parsley
  • 1 tablespoon finely chopped fresh basil or tarragon

Method

  • Trim the ends off the asparagus and place in a pot of boiling salted water.
  • Bring the water to a second boil, reduce the heat and boil slowly, uncovered, for 2 to 5 minutes, until the spears bend a little but are not limp.
  • Drain and rinse them under cold running water until cool.
  • Spread the cooked spears in a single layer on paper towels so they will finish cooling quickly.
  • Place the eggs on a spoon and lower into a small saucepan of boiling water.
  • Boil the eggs for 3 minutes (3 1/2 if they are chilled).
  • Rinse under cold running water until cool enough to handle.
  • Hit each egg with a knife at ''the equator'' and pull the halves apart.
  • With a spoon, pull out the yolks into a medium-size bowl.
  • Set aside the whites, in their shells, to finish cooking.
  • Whisk the yolks until they are thick and sticky.
  • Whisk in the mustard, salt and vinegar.
  • Add the oil, whisking by hand or with an electric mixer, drop by drop at first and then in a steady stream.
  • When all the oil is incorporated, stir in the shallots, parsley and basil or tarragon and taste for salt.
  • Sieve or finely chop the egg whites and fold them in, if desired.
  • If sauce is too thick for dipping, thin with a little vinegar.