Chocolate Carrot Cake

Name: Chocolate Carrot Cake
Ingredients: Nonstick cooking spray; 2 1/2 cups all-purpose flour, plus more for the pans; 2 teaspoons baking powder; 1 teaspoon baking soda; 1 teaspoon apple pie spice; 1/4 teaspoon salt; 1 1/2 cups granulated sugar; 1/2 cup packed light brown sugar; 1 1/4 cups vegetable oil; 4 large eggs; 1/2 cup applesauce; 1 teaspoon pure vanilla extract; 2 1/2 cups finely grated carrots (about 4 medium carrots); 1 1/2 cups heavy cream; 24 ounces semisweet chocolate, finely chopped; 2 tablespoons unsalted butter; 16 marshmallows; 5 to 6 drops orange gel food coloring