01 - Beat cream cheese in a medium bowl until smooth. Add powdered sugar and vanilla extract; beat until fully incorporated. Gently fold in whipped topping until the mixture becomes creamy and smooth.
02 - Sprinkle a layer of crushed shortbread cookies evenly 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 in an even layer over the cream filling.
05 - Repeat the layering process with remaining cookies, whipped filling, and mixed berries until all ingredients are used. Complete the final layer with berries on top for an attractive presentation.
06 - Garnish with additional fresh berries and mint leaves if desired for visual appeal and extra flavor.
07 - Refrigerate the assembled dessert for at least 1 hour to allow the layers to set properly and flavors to meld together.