Add the pretzels and sugar into the bowl of a food processor and blitz until you reach fine crumbs. Add the melted butter and blitz to coat the crumbs.
Add all but a small handful of the crumbs to a 9-inch tart tin with removable bottom and use the back of a spoon to spread around and press firmly into the bottom and sides of the tart tin. Place in the fridge to chill. You’ll use some of the reserved crumbs to sprinkle on top.
Strawberry Mousse
Add the cleaned and dried strawberries to the clean bowl of a food processor and blitz until the strawberries are completely pulverised. No chunks.
Place a sieve over a large saucepan and run the strawberry puree through it to get rid of the seeds. Use a spatula to push it through the sieve. Add the sugar into the saucepan and continuously stir until it comes to a gentle boil. Sprinkle the gelatin on top and stir until dissolved. If the gelatin becomes lumpy, run the mixture through a sieve to get rid of the lumps. Pour the mixture into a bowl and cover with plastic wrap. Allow to cool to room temperature.
Add the heavy cream and vanilla extract to a bowl and whip to stiff peaks. Add most of the cooled strawberry sauce and fold through using a spatula until well combined. You’ll use the reserved mixture to drizzle on top of the finished tart.
Pour the strawberry cream mixture into the cooled tart shell and use a spatula to smoothen out. Chill in the fridge for 2 hours or overnight.
Whipped Cream
Add the cream and vanilla extract to a large mixing bowl and whip to stiff peaks.
Let's Decorate!
Transfer the chilled tart to a serving plate. Fit the end of a piping bag with an open star tip and pipe swirls of cream on top of the chilled tart. Sprinkle with pretzel crumbs, strawberry halves and some reserved strawberry sauce.
StorageTart can be stored in an airtight container for up to three days.To make sure your mousse doesn’t split make sure your strawberries are dried well after being washed.