01 -
Preheat oven to 350°F. Line the base of a 9-inch springform pan with parchment paper and lightly coat the sides with nonstick spray.
02 -
In a medium bowl, combine brownie mix, vegetable oil, water, and the beaten egg. Stir until just incorporated; do not overmix.
03 -
Pour brownie batter into the prepared springform pan and smooth the top. Bake for 35 minutes.
04 -
Remove the pan from the oven. Immediately sprinkle semi-sweet chocolate chips and peanut butter chips evenly over the hot brownie base. Allow the crust to cool completely.
05 -
Reduce oven temperature to 325°F.
06 -
In a large bowl, beat cream cheese until smooth using a hand or stand mixer.
07 -
Add granulated sugar and vanilla extract to the cream cheese. Mix until fully blended and smooth.
08 -
On low speed, add eggs one at a time, mixing thoroughly after each addition.
09 -
Add creamy peanut butter and heavy cream; continue mixing until batter is homogenous.
10 -
Using a spatula, gently fold in the quartered miniature peanut butter cups to distribute evenly.
11 -
Wrap the exterior of the springform pan tightly in a double layer of aluminum foil. Pour the cheesecake batter over the brownie base.
12 -
Place the wrapped springform pan in a large roasting pan. Pour hot water into the roasting pan until it reaches about 1 inch up the sides of the springform pan for a water bath.
13 -
Transfer to the oven and bake at 325°F for 1 hour, or until the edges are set but the center slightly jiggles.
14 -
Turn off the oven and crack the oven door open about 2.5 cm (1 inch). Allow the cheesecake to cool in the oven for 30 minutes before removing.
15 -
Once partially cooled, remove from the water bath, discard foil, and allow cheesecake to reach room temperature. Refrigerate until fully chilled, at least 4 hours or overnight.
16 -
Heat 1/2 cup heavy cream in a small saucepan until steaming, then pour over 1 cup semi-sweet chocolate chips in a bowl. Let sit 2 minutes, then stir until smooth.
17 -
Spread chocolate ganache evenly over the chilled cheesecake. Top with 34 quartered miniature peanut butter cups. Slice and serve.