Place the gelatine in a bowl of cold water. Cut the white chocolate into small pieces and place them in a container. If you use small pistoles, no need to cut them
Heat the first half of the liquid cream (18 ml). As soon as it boils, remove from the heat and pour over the white chocolate.
Add the drained gelatine. Leave to melt for 2 minutes, then mix with a hand whisk until the chocolate is well melted
Then add the second half of the liquid cream (200 ml), then the raspberry puree
Cover and ideally place overnight in the refrigerator
Split the vanilla pod in half. Scrape the seeds
Place the seeds and the open pod in a saucepan with the cream. Bring to the boil then remove from the heat. Cover and let infuse for 1 hour
Place the gelatine in a bowl of cold water
Whisk together egg yolks and powdered sugar
Remove the vanilla pod from the pan and heat the cream again
Pour the hot cream over the yolks/sugar mixture, little by little, whisking constantly
Put everything back in the saucepan and heat to 82°C
Remove from the heat, add the mascarpone and mix again
Pour into the prepared mould, then place in the freezer for at least 1 hour
Preheat the oven to 180°C. Whip the egg whites. When they begin to become foamy, add the powdered sugar, continuing to whisk until the whites are firm
Add the sifted icing sugar and the ground almonds. Incorporate them very delicately with a spatula
Place everything in a piping bag fitted with a size 12 nozzle
Pipe a rectangle 3 cm less in length than your log mould
Bake for 12 minutes
Line your log mould with parchment paper
Pour in 3/4 of the raspberry ganache, pressing down a little to avoid air bubbles
Then place the vanilla insert by pressing it down slightly
Cut a strip of dacquoise the width of the vanilla insert and place it on the insert
Pour the rest of the ganache, then arrange the rest of the dacquoise, pressing lightly, so as to have a flat surface
Place overnight in the freezer
heat the icing in a bain-marie to 50°C, while mixing, then let it cool down to 45°C
Pour over the frozen log, placed on a wire rack with a plate underneath
Place the log on a serving platter and let thaw for at least 5 hours in the refrigerator
Serve