Chocolate Peppermint Cheesecake

Preheat oven to 350º and spray an 8" springform pan with cooking spray. Make filling: In a large bowl using a hand mixer (or in a stand mixer using the paddle attachment), beat cream cheese and sugar. Add eggs, one at a time, then sour cream, flour, peppermint extract, vanilla, and salt. Gently fold in chopped chocolates and candy canes and set aside. Make crust: In a food processor or in a large Ziploc bag, crush Oreos into fine crumbs. Stir with melted butter until completely moist. Add crust to prepared pan and pack tightly. Pour over filling and place pan on a rimmed baking sheet. Bake until center is only slightly jiggly, about 1 hour. (If you want to use a water bath to ensure no cracking, wrap springform pan in foil and place springform pan in a deep-sided roasting pan. Pour boiling water into roasting pan until it reaches halfway up the springform pan.) Turn off oven and let cheesecake cool in oven 1 hour (this step is optional but prevents cracking). Refrigerate cheesecake until completely chilled, at least 4 hours but preferably overnight Before serving, make chocolate ganache: Pour hot cream over chocolate chips and let sit, 5 minutes. Stir until all chocolate is melted. (If ganache seems too thin, refrigerate 5 minutes.) Spread ganache over chilled cheesecake and garnish with more chopped chocolate and candy canes. Refrigerate 10 minutes before serving to let ganache harden.