To make the brûlée, add the split vanilla pods to a pan with the cream and mascarpone and bring to the boil
Meanwhile, whisk together the egg yolks and sugar in a bowl until pale and smooth. Once the cream has boiled, carefully pour the mixture onto the eggs, stirring continuously until incorporated and smooth. Pass the custard through a sieve into a bowl and skim any excess fat from the surface
Preheat the oven to 300ºF
Divide the soaked raspberries between 6 brûlée dishes, top with the custard mixture and cook in the oven for approximately 45 minutes, until they have a slight wobble when shaken but are set in the middle. If using deeper dishes, place in a bain marie (water bath) before cooking. Once cooked, remove from the oven and cool.
Once ready to serve, dust the brûlées with icing sugar and use a blow torch to caramelise the surface (you can repeat this process for an extra crispy top). Once the tops of the brûlées are set and crisp, serve immediately