Heat the oven to 200°C. Pour the wine and sugar into a small pan and bring to a simmer, slice the vanilla pod in half, scrape out the seeds and add to the wine, along with the pod itself and the lemon juice, then simmer for another couple minutes. Place the fruit into an oven proof dish, pour over the wine and place in the oven for about 15 minutes. Take out the oven and leave to cool.
Turn the oven down to 120°C. Place the egg whites in a bowl and whisk to soft peaks, very slowly add the sugar – a spoon at a time till all combined and it should be thick with a good shine to it. Add the hazelnuts and carefully fold in with a metal spoon. Line a baking tray with parchment and spoon the meringue onto the tray – we like to make one large one, but you could make smaller ones if you wish. Place in the oven and cook for about 40 mins – you want it to be crisp on the outside yet chewy in the middle.
Place the chai tea in a spice grinder or pestle and mortar and grind to a fine powder. Place the cream in a bowl and whisk until it’s beginning to thicken and add the chai powder, taste, and add more if necessary. Whisk to soft peaks – don’t over whisk.
To assemble, place the meringue on your serving platter, spoon over the cream then place the fruit on top and finish by sprinkling over the chopped pistachios.