Ingredients

  • Softened butter for greasing dish
  • 5 tablespoons granulated sugar
  • 1 cup milk
  • 3 large egg yolks
  • 1 tablespoon vanilla
  • 1/4 cup all-purpose flour
  • 2 tablespoons finely grated lemon rind
  • 4 tablespoons fresh lemon juice
  • 1 tablespoon powdered sugar, plus more for sprinkling
  • 5 large egg whites
  • Lightly whipped cream or cold creme anglaise for serving

Method

  • Preheat oven to 400 degrees.
  • Butter an 8-cup souffle dish and dust the bottom and sides with 2 tablespoons of the granulated sugar, shaking out excess.
  • Heat the milk to boiling in a heavy saucepan.
  • Remove from heat.
  • Whisk the egg yolks, vanilla and 1 tablespoon of the granulated sugar until well blended, then whisk in the flour.
  • Whisk in the hot milk in a thin, steady stream and blend until smooth.
  • Return the mixture to the saucepan and cook over medium-low heat, stirring constantly, until mixture is very thick, about 2 minutes.
  • Remove from heat.
  • Mix the lemon rind, lemon juice and 1 tablespoon powdered sugar in a cup and whisk into the egg yolk mixture.
  • (At this point, the souffle base can be refrigerated, covered with plastic wrap directly on its surface, for up to a day.)
  • If the souffle base is still warm, whisk briefly until smooth.
  • Otherwise, place over low heat, whisk until just warm, and remove from heat.
  • Beat the egg whites until soft peaks form.
  • Sprinkle in the remaining 2 tablespoons granulated sugar and beat until stiff and shiny.
  • Fold 1/4 of the whites into the souffle base.
  • Gently fold in the rest, being careful not to deflate mixture.
  • A few white streaks may remain.
  • Turn the mixture into the prepared dish and place on the center rack in the oven.
  • Immediately reduce oven temperature to 375 degrees.
  • Bake until souffle is puffed and brown, about 20 to 25 minutes.
  • (It should still wobble a bit.)
  • Sprinkle powdered sugar over the top and serve immediately with lightly whipped cream or very cold creme anglaise.