Carrot & Spice Roll Cake with Cream Cheese Marshmallow Filling

Ingredients

• 6 grade A large egg yolks
• 1/3 cup granulated sugar (65g)
• 1/3 cup dark brown sugar (65g)
• 4 tbsp vegetable oil (57g)
• 1 tsp Nielsen & Massey vanilla extract (4.3g)
• 1/2 tsp Nielsen & Massey Orange Extract (2.2g)
• 2 cups finely grated carrots (200g)
• 3/4 cup King Arthur cake flour (96g)
• 3 tbsp corn starch (21g)
• 1 tsp baking powder (4g)
• 1/2 tsp baking soda (2g)
• 1/2 tsp salt (3g)
• 2 tsp cinnamon (4.6g)
• 1 tsp ground nutmeg (2.3g)
• 1/2 tsp ground ginger (1.2g)
• 6 grade A large egg whites
• 1/3 cup granulated sugar (67g)
• 8 oz cream cheese (not whipped) (228g)
• 4 oz butter (114g)
• 1 cup marshmallow cream (238g)
• 1/2 cup sifted powder sugar (60g)
• 3 Grade A large egg whites
• 1/2 tsp cream of tartar
• 3/4 cup granulated sugar (150g)
• 3/4 cup Karo light corn syrup (150g)
• 1/3 cup water (80g)