Using a food processor yields uniform cookie crumbs; alternatively, crush cookies in a sealed bag with a rolling pin., Press crust firmly to hold well under filling., Room temperature mascarpone ensures smooth mixing and silky dessert texture., Cream cheese can substitute mascarpone for a tangier, firmer texture., Adjust powdered sugar for sweetness preference or omit for less sweetness., Cups should be kept covered and chilled for at least 2 hours up to 3 days., Store assembled cups covered in the refrigerator. Whipped cream stability can be improved with powdered sugar or gelatin., Freezing is not recommended due to separation risks but if done, omit whipped cream topping and thaw overnight gently before serving., Serving size may vary depending on cup size; recipe serves 6 but can be stretched to 8 smaller servings., Flavor and texture variations are possible by swapping cookie crusts, spreads, or adding espresso, nuts, fruits, or chocolate toppings.