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