Preheat oven to 350 degrees. Grease and flour a bundt pan and set aside.
Add flour, baking powder, baking soda, cinnamon, nutmeg, clove, ginger, and sea salt and whisk together until uniform in appearance.
2 ½ cups all-purpose flour, 2 teaspoons baking powder, ½ teaspoon baking soda, 2 teaspoons ground cinnamon, ½ teaspoon ground nutmeg, ½ teaspoon ground clove, ½ teaspoon ground ginger, ½ teaspoon fine sea salt
In another bowl, combine brown sugar, pumpkin puree, milk, butter, eggs, and vanilla extract until uniform.
1 ¾ cup brown sugar, ½ can pumpkin puree, ¼ cup milk, ¼ cup unsalted butter, 4 eggs, 2 teaspoons vanilla extract
Add wet ingredients to dry ingredients and stir until just combined and no dry pockets remain. Peel and shred apple then mix into cake batter.
1 small apple
Transfer batter to prepared bundt pan and bake on center oven rack for about 45 minutes or until a toothpick inserted into multiple parts of the cake comes out clean. Cool for about 10 minutes in pan then remove and allow to cool completely.