01 -
In a medium mixing bowl, gently combine the sliced strawberries, raspberries, blueberries, granulated sugar (if desired), and lemon juice. Allow the mixture to rest for 10 minutes so the berries release their juices.
02 -
In a large bowl, beat the chilled heavy cream with powdered sugar and vanilla extract using an electric mixer or whisk until soft peaks form.
03 -
Place one-third of the cake cubes into the bottom of each of the 6 clear serving cups or glasses.
04 -
Spoon a layer of whipped cream over the cake cubes in each cup.
05 -
Top the whipped cream with a layer of macerated berries and their juices.
06 -
Repeat layering with cake, whipped cream, and berries until the cups are full, finishing with a final layer of whipped cream and a few berries.
07 -
Garnish each trifle cup with fresh mint leaves if desired. Serve immediately or chill for up to 2 hours before serving.