01 - Beat softened cream cheese in a medium bowl until completely smooth. Add powdered sugar and vanilla extract, beating until fully incorporated. Gently fold in whipped topping until mixture is creamy and smooth.
02 - Sprinkle an even layer of crushed shortbread cookies across the bottom of a glass trifle bowl or individual serving cups.
03 - Spread a layer of the whipped cheese mixture over the cookie base, ensuring even coverage.
04 - Arrange sliced strawberries and blueberries over the whipped filling in an even layer.
05 - Continue layering in the following order: crushed cookies, whipped filling, mixed berries. Repeat until all ingredients are used, ensuring the final layer is berries for a beautiful presentation.
06 - Top with additional berries and mint leaves if desired. Refrigerate for at least 1 hour to allow flavors to meld and layers to set before serving.