One-Bowl Apple Spice Cake

Name: One-Bowl Apple Spice Cake
Cuisine: American
Ingredients: ¼ cup unsalted butter, room temperature; ¼ cup vegetable oil; 1 cup packed dark brown sugar; 2 large eggs, room temperature; 2 teaspoons pure vanilla extract; ½ cup buttermilk; ¼ cup unsweetened applesauce; 1¾ cups all-purpose flour; 4 teaspoons ground cinnamon; 1½ teaspoons ground ginger; ¾ teaspoon ground nutmeg; ½ teaspoon ground cardamom; ¼ teaspoon ground cloves; ½ teaspoon Diamond Crystal kosher salt; 1½ teaspoons baking powder; ¼ teaspoon baking soda; 2 cups diced apples (about 2 large); ½ cup unsalted butter, room temperature; 8 ounces cream cheese, room temperature; 3 cups powdered sugar; 1½ teaspoons pure vanilla extract; Pinch kosher salt; ¼ cup caramel; 2 to 3 tablespoons honey; Optional: star anise, pomegranate seeds, apple slices (tossed in lemon juice)