01 -
Line an 8x8 inch baking pan with parchment paper, leaving an overhang on two opposite sides. Lightly coat with nonstick cooking spray.
02 -
Pulse 1 cup of Lucky Charms cereal in a food processor until fine crumbs form. If unavailable, crush inside a sealed plastic bag using a rolling pin.
03 -
Mix the crushed cereal, graham cracker crumbs, granulated sugar, and melted butter in a medium bowl until thoroughly combined and the texture is similar to wet sand.
04 -
Firmly press the crumb mixture into an even layer in the prepared pan, using the flat bottom of a measuring cup to compact it. Chill the crust in the refrigerator while preparing the filling.
05 -
Using an electric mixer on medium speed, beat the softened cream cheese, powdered sugar, and vanilla extract in a large bowl until smooth and creamy, approximately 2-3 minutes. Scrape down the bowl as needed.
06 -
Beat the cold heavy whipping cream in a separate bowl on high speed until stiff peaks form, about 3-4 minutes.
07 -
Gently fold the whipped cream into the cream cheese mixture using a rubber spatula, keeping the mixture light. Fold until no streaks remain.
08 -
Stir in 1/2 cup of whole Lucky Charms cereal, carefully preserving the marshmallows’ shape.
09 -
Spoon the cheesecake filling over the chilled crust and smooth the top with an offset spatula or the back of a spoon. Tap the pan gently to release air bubbles.
10 -
Cover the pan tightly with plastic wrap and refrigerate for at least 4 hours or preferably overnight until the cheesecake is firm for slicing.
11 -
Using the parchment paper overhang, lift the bars out of the pan. Let them stand at room temperature for 10 minutes before cutting.
12 -
Slice into 8 bars using a sharp knife dipped in hot water and cleaned between cuts. Optionally, garnish with additional Lucky Charms marshmallows or drizzle with melted white chocolate before serving.