Ingredients

  • 1 12 cups hazelnuts, toasted (8 oz)
  • 14 cup matzo meal
  • 1 cup sugar
  • 4 large eggs, separated, at room temperature
  • 1 teaspoon fresh lemon zest, finely grated
  • 14 teaspoon salt
  • 3 ounces semisweet chocolate or 3 ounces bittersweet chocolate, chopped
  • 3 tablespoons orange juice or 3 tablespoons water
  • 3 tablespoons unsalted margarine (if not keeping glaze pareve use butter) or 3 tablespoons butter (if not keeping glaze pareve use butter)
  • 3 tablespoons sugar

Method

  • Preheat oven to 350F and grease a 9-inch springform pan.
  • Rub hot toasted nuts in a kitchen towel to remove some of skins, then cool completely.
  • Make cake: Pulse nuts, cake meal, and 1/4 cup sugar in a food processor until nuts are very finely chopped, being careful not to process to a paste.
  • 3Beat yolks and 1/2 cup sugar in a large bowl with an electric mixer on high speed until pale and very thick.
  • Stir in zest.
  • Beat whites with salt in another bowl with cleaned beaters on high speed until soft peaks form.
  • Gradually beat in remaining 1/4 cup sugar and beat until whites just hold stiff, glossy peaks.
  • In 3 batches, alternately fold nut mixture and whites into yolk mixture.
  • Spoon batter into pan and smooth top.
  • Bake cake in middle of oven until golden and a tester comes out clean, about 35 minutes.
  • Cool in pan on a rack 3 minutes, then loosen edge with a knife and remove side of pan.
  • Cool completely.
  • (Cake will sink slightly in center.
  • ).
  • Glaze:Cook all ingredients in a small heavy saucepan over low heat, whisking until smooth.
  • Cool 5 minutes and then pour warm glaze over cake.
  • Glaze cake: Invert cake onto a rack set over a shallow baking pan.
  • Carefully loosen bottom of pan and remove.
  • Pour warm glaze over cake, allowing it to drip down sides, and spread to coat evenly.
  • Chill until glaze is set, about 5 minutes.