Squeeze orange to get 1/3 to 1/2. Preheat the oven to 350 degrees fahrenheit. Prepare oven and cake pans: Grease or spray a 13×9 inch pan. Mix the flour, baking powder, baking soda, salt and spices in a large bowl. In another bowl, whisk flour, baking soda, spices and salt; Whisk well and set aside. Bake in the preheated oven until a toothpick inserted near the center. In a large bowl, beat eggs, sugar, oil and vanilla until well blended. Stir in 3/4 cup nuts;
Grease or spray a 13×9 inch pan. Preheat the oven to 350 degrees fahrenheit. Preheat oven to 350°f with oven rack in center of oven. Spread evenly into the prepared pan. Whisk well and set aside. Stir in 3/4 cup nuts; Prepare oven and cake pans: In another bowl, whisk flour, baking soda, spices and salt; Web whisk together cake mix, sweet potatoes, eggs, milk, and oil in a bowl. Grease or spray a 13×9 inch pan. Mix the flour, baking powder, baking soda, salt and spices in a large bowl.
