Ingredients

  • 2 large eggs, separated
  • 9 ounces cooked ham, trimmed and finely ground in a food processor (2 cups)
  • Pinch of freshly grated nutmeg
  • Pinch of white pepper
  • Pinch of cayenne
  • 1/2 teaspoon salt
  • 1 cup chilled heavy cream
  • 2 tablespoons medium-dry Sherry
  • Garnish: watercress sprigs
  • Accompaniment: Hollandaise
  • Special equipment: an 8- by 4- by 2 1/2-inch (1-quart) metal loaf pan

Method

  • Preheat oven to 300F.
  • Whisk yolks in a bowl, then whisk in ham, nutmeg, white pepper, cayenne, and salt.
  • Beat together cream and Sherry in another bowl with an electric mixer until cream holds soft peaks, then fold into ham gently but thoroughly.
  • Beat egg whites with a pinch of salt in another bowl with cleaned beaters until frothy, then fold into ham gently but thoroughly.
  • Spread mousse in well-buttered loaf pan and bake, uncovered, in a hot water bath in middle of oven until a toothpick inserted in center comes out clean and mousse is firm to the touch, about 1 1/2 hours.
  • Transfer loaf pan to a rack and cool mousse 40 minutes.
  • Run dull side of a thin knife or a small spatula around edges and invert mousse onto a plate.