Preheat oven to 350°F (175°C).

Prepare an ungreased tube pan.

In a large bowl, combine flour, baking powder, salt, soda, and cinnamon.

Add liquid shortening to the dry ingredients and mix well with a spoon.

In a separate bowl, beat eggs.

Add sugar and vanilla to the beaten eggs and mix until combined.

Pour the sugar mixture into the flour mixture and mix by hand until just combined. Avoid overmixing.

Gently fold in the chopped apples and nuts.

Mix until evenly distributed.

Pour the batter into the prepared tube pan.

Bake for 1 hour and 10 minutes, or until a toothpick inserted into the center comes out clean.

Let cool completely before slicing and serving.