Add the heavy cream, coffee, and chopped chocolate to a small saucepan set over medium heat. Cook, stirring occasionally, until the chocolate has fully melted. Then, add the instant espresso and whisk to combine. Set the mixture aside to cool.
¼ cup heavy cream, ¼ cup strongly brewed coffee or espresso, 8 ounces baking chocolate, 1 tablespoon instant espresso powder
Add the softened cream cheese to the bowl of a stand mixer fitted with the paddle attachment. Beat on medium speed until the cream cheese is light and fluffy, about 2-3 minutes.
24 ounces cream cheese
Add the sugar and sour cream and mix to combine. Make sure to scrape down the sides of the bowl as needed.
½ cup granulated sugar, ½ cup sour cream
Add the vanilla, cocoa, and chocolate mixture (from step 1). Mix until well combined.
1 teaspoon pure vanilla extract, 2 tablespoons unsweetened cocoa powder
With the mixer on low speed, add the eggs one at a time. Make sure to fully incorporate each egg before adding the next one.
3 large eggs
Once all of the eggs have been incorporated, pour the mixture over the prepared crust.
Bake for 55-60 minutes, or until the center is set and no longer jiggles when shaken.
Turn the oven off and crack the door. Allow the cheesecake to cool in the oven to room temperature (about 1 hour). This will help prevent cracking!
Once the cheesecake has cooled, transfer it to the refrigerator to chill completely-- at least 4 hours, but preferably overnight.
To serve, slice and enjoy!