Step 1

Preheat the oven to 350 degrees F.

Step 2

Using the extra butter, grease a 10-inch fluted tube pan, then using the extra flour, lightly dust the greased pan.

Step 3

In a large bowl, sift 2 1/4 cups of the remaining flour, the baking powder, the salt, the cinnamon, the allspice, and the nutmeg and stir to combine.

Step 4

In a separate, large bowl, add 1/2 cup of the remaining softened butter, the granulated sugar, the maple syrup, the eggs, and the cream of tartar and using an electric handheld mixer, beat on low speed until combined.

Step 5

Gradually add the dry ingredients mixture to the butter mixture and beat until just combined into a dry batter.

Step 6

With the mixer on low speed, add the milk to the batter and beat until just combined. Do not overmix.

Step 7

Add the chopped apple to the batter and fold gently with a spatula to combine.

Step 8

Evenly pour the batter into the prepared pan.

Step 9

Bake until a toothpick inserted into the center of the cake comes out clean, about 30 minutes.

Step 10

Transfer the baked cake from the oven to a wire rack and let it cool in the pan before removing, about 10 minutes.

Step 11

Transfer the cooled cake from the pan to a serving plate.

Step 12

Dust the cake with the confectioners' sugar.

Step 13

Serve.