Chocolate-Cranberry Vertical Yule Log

Ingredients

• 11 oz (300 g) white chocolate, chopped
• 2 ½ cups (625 ml) 35% cream
• 2 tsp (10 ml) vanilla
• ½ tsp gelatin
• 1 tbsp (15 ml) water
• 2 cups (210 g) fresh or frozen cranberries, plus more for decorating
• ¾ cup (160 g) sugar
• 1 tbsp (15 ml) lemon juice
• 2 oz (55 g) dark chocolate, melted and tempered
• 1 tbsp cocoa powder
• 1 cup (150 g) unbleached all-purpose flour
• ⅓ cup (35 g) cocoa powder, sifted
• 2 tsp baking powder
• 1 pinch salt
• 5 eggs, at room temperature
• ¾ cup (160 g) sugar
• ¼ cup (60 ml) vegetable oil
• Rosemary sprigs (optional)