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