12 ounces bittersweet (not unsweetened) or semisweet chocolate, chopped
1 cup (2 sticks) unsalted butter
3/4 cup slivered almonds, toasted
3 tablespoons cake flour
1/4 teaspoon salt
5 large eggs
1 1/3 cups sugar
1 teaspoon vanilla extract
1 1/2 cups chilled whipping cream
Directions
Preheat oven to 325°F. Butter 9-inch-diameter springform pan with 2 3/4-inch-high sides. Stir chocolate and butter in heavy medium saucepan over low heat until smooth. Cool mixture to lukewarm.
Finely grind 1/2 cup almonds, flour and salt in processor. Using electric mixer, beat eggs, sugar and vanilla in large bowl until thick, about 2 minutes. Fold in almond mixture, then chocolate mixture. Pour batter into prepared pan.
Bake cake until tester inserted into center comes out with moist crumbs attached, about 1 hour 10 minutes. Cool cake in pan on rack (center will fall). Press edges down with fork to level top. Cover; refrigerate at least 2 hours and up to 1 day.
Cut around cake; remove pan sides. Beat cream in large bowl to firm peaks. Mound cream atop cake; sprinkle with remaining 1/4 cup almonds.
