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 - Evenly distribute a layer of crushed shortbread cookies across the bottom of a glass trifle bowl or individual serving cups.
03 - Spread a portion of the whipped cheese mixture over the cookie base, creating an even layer.
04 - Arrange a layer of sliced strawberries, blueberries, and raspberries over the cream filling.
05 - Repeat the layering process with crushed cookies, whipped filling, and mixed berries until all ingredients are used. Complete the dessert with a final layer of fresh berries on top for presentation.
06 - Top with additional fresh berries and mint leaves if desired. Refrigerate for at least 1 hour to allow the layers to set before serving.