01 -
Throw blackberries, white sugar, and lemon juice in a small pot. Cook on medium for about 5-7 minutes, giving it a stir now and then until berries get soft and juicy. Push this mix through a strainer with the back of a spoon to get rid of seeds. Let your purple mix cool down completely.
02 -
Grab a big bowl and beat your cold cream with the sugar and vanilla until it's nice and firm with peaks that stand up.
03 -
Carefully fold your cooled berry mix into the whipped cream until you've got an even purple color and a light, airy texture.
04 -
Scoop or pipe your purple mousse into serving cups. Make the tops look pretty and smooth.
05 -
Stick it in the fridge for at least 2 hours so it firms up nicely. Before serving, add some fresh blackberries, a bit of cream on top, and mint if you want.