Walnut Orange Buche de Noel - Good Food And Treasured Memories

Ingredients

• cooking spray & flour for preparing baking pan
• 2 Tbsp flour
• 1 1/2 cups walnuts, toasted
• 6 large eggs, separated (room temperature)
• 10 Tbsp sugar
• 1/2 tsp pure vanilla
• 1/4 tsp salt
• 250 grams mascarpone cheese, room temperature
• 250 grams cream cheese, room temperature
• 1/2 cup sugar
• 1 Tbsp orange zest, finely grated
• 1 Tbsp Cointreau
• 1 tsp pure vanilla
• 1 cup heavy cream, whipped to soft peaks
• 140 grams semi-sweet chocolate, coarsely chopped
• 2 egg whites, room temperature
• 1/4 tsp cream of tartar
• 1/4 cup white chocolate
• 1/4 cup cocoa powder