Applesauce Cake - SippitySup

Ingredients

• vegetable oil cooking spray
• 12 tablespoons unsalted butter, room temperature, divided
• ½ cup firmly packed dark brown sugar
• ¼ cup old-fashioned rolled oats
• 2½ teaspoon ground cinnamon
• 1 teaspoon salt
• 1 cup chopped toasted walnuts
• 2 cups all-purpose flour
• 1 teaspoon baking soda
• ½ teaspoon freshly grated nutmeg
• ½ teaspoon chinese 5 spice powder
• 1 cup granulated sugar
• ½ cup firmly packed light brown sugar
• 4 large eggs
• 2 cups applesauce
• 2 mcintosh apples, peeled, cored, and cut into ¼‑inch-thick wedges