01 - Place softened cream cheese in a large mixing bowl. Beat until completely smooth and creamy, ensuring no lumps remain.
02 - Pour in powdered sugar and vanilla extract. Continue beating until fully incorporated and mixture becomes fluffy in texture.
03 - In a separate chilled bowl, whip cold heavy cream using electric mixer or stand mixer until stiff peaks form and cream holds its shape.
04 - Gently fold whipped cream into cream cheese mixture using rubber spatula. Fold until smooth and uniform, being careful not to deflate the whipped cream.
05 - Add quartered strawberries, blueberries, and mini marshmallows to the cheesecake mixture. Gently fold to combine until fruits are evenly coated.
06 - Refrigerate salad for at least 1 hour to allow flavors to meld and mixture to set properly. Cover bowl with plastic wrap or lid.
07 - Serve chilled in individual bowls or as part of a dessert spread. Optionally garnish with extra fresh berries for presentation.