Chocolate Chestnut Torte -Torta di cioccolato e castagne

Name: Chocolate Chestnut Torte -Torta di cioccolato e castagne
Prep time: 15 min
Cook time: 3 h 50 min
Total time: 3 h 50 min
Yield: 16 slices
Ingredients: plain flour; 280 g dark chocolate (70% cocoa solids); 450 g chestnut purée; 6 egg yolks; 100 g unsalted butter; 4 Tbsp dark rum; 60 g caster sugar; 6 egg whites; ¼ tsp fine sea salt; 170 g dark chocolate (70% cocoa solids); 100 g double cream; 1 Tbsp dark rum