Use Graham Cracker Crumb Crust found under Crust Variations. Use Basic Recipe With just a few adjustments to our basic recipe, you'll have this even richer chocolate and hazelnut flavored cake studded with chocolate chunks. Try it with a hazelnut/chocolate grahma craker-crumb crust and you'll be craving seconds. In heatproof bowl set over hot, not simmering, wter, combine heavy cream from basic recipe with 3 oz chopped semisweet chocolate. Heat, stirring frequently, until mixture is melted and smooth. Remove from heat; cool slightly. Stir into cream cheese, sugar and flour mixture until smooth. Proceed with recipe as directed, stirring half cup finely ground, lightly toasted hazelnuts and 3 oz coarsely chopped semisweet chocolate into batter at end. Pur into prepared pan. Bake as directed. Drizzle chilled cheesecake with store-bought chocolate sauce and garnish with hazelnuts, if desired.