Ingredients
Equipment
Method
Make the crust
- Heat the oven to 325°F.
- Grease a 9-inch springform pan.
- Wrap the outside of the pan with two layers of heavy-duty foil.
- Set the wrapped pan in a large roasting pan.
- Stir the chocolate wafer crumbs, sugar, and melted butter together until evenly moistened.
- Press the crumb mixture firmly over the bottom and about 1 inch up the sides of the springform pan.
- Bake the crust for 10 minutes, then cool it while you make the filling.
Make the filling
- Beat the cream cheese in a large bowl with an electric mixer on medium speed until smooth.
- Add the sugar, hot cocoa mix, and cocoa powder, and beat on low just until combined, scraping the bowl as needed.
- Beat in the eggs one at a time on low speed.
- Mix in the sour cream and vanilla just until smooth.
- Pour the filling over the crust and smooth the top.
- Set the roasting pan on the oven rack.
- Carefully pour boiling water into the roasting pan until the water reaches halfway up the sides of the springform pan.
- Bake for 65 to 80 minutes, until the edges are set and the center still jiggles slightly when the pan is nudged.
- Turn off the oven and crack the door open.
- Leave the cheesecake inside for 1 hour.
- Lift the springform pan out of the water bath and remove the foil.
- Cool the cheesecake on a rack until it reaches room temperature, about 1 hour.
- Cover and refrigerate for at least 6 hours, until thoroughly chilled.
Make the topping
- Whisk the marshmallow creme in a chilled bowl to loosen it.
- Whisk in the cold heavy cream a tablespoon at a time until smooth.
- Beat on medium-high speed until medium-stiff peaks form.
- Release the chilled cheesecake from the springform pan.
- Spread or pipe the marshmallow topping over the cheesecake before serving.
Notes
For clean slices, wipe the knife between cuts. Store covered in the refrigerator for up to 4 days; freeze without the topping for up to 2 months. For a gluten-free variation, use certified gluten-free chocolate wafer crumbs and check that the hot cocoa mix is gluten-free.
