1. In a large mixing bowl, whisk together the dry ingredients.

2. In another mixing bowl, whisk together the wet ingredients.

3. Pour the wet ingredients into the dry and fold just until combined.

4. Fold in the grated apples.

5. Turn out the cake batter into the prepared pan.

6. Allow to cool in the pan for 10 minutes, then remove to a wire rack.

7. To make the brown sugar icing, melt the butter, brown sugar, and heavy cream in a medium-sized saucepan over medium heat. Whisk until the mixture is combined.

8. Remove from heat and whisk in the vanilla and powdered sugar.

9. Pour the icing on top of the cake. The cake doesn’t need to cool completely; when it's still a little warm, the icing melts into the cake.

10. Slice and enjoy warm!