Combine diced apples, cinnamon, and 2 tbsp sugar in a medium mixing bowl and set aside.
Sift together flour, baking powder, and salt in a large mixing bowl.
In separate mixing bowl, whisk together the oil, orange juice, sugar, vanilla and eggs until well combined. Gradually stir dry ingredients into wet ingredients until you have a smooth batter.
Coat your springform pan with non-stick baking spray.
Pour half the batter into the springform pan, then cover with half of the diced apples. Repeat with the rest of the batter and diced apples so that you have 4 layers.
Cover the springform pan with foil.
Add 1 cup of water into the insert of the IP and place the trivet inside. Set the springform onto the trivet and close the lid.
Select manual (high) and set the time for 60 minutes.
Once the timer goes off, allow to natural pressure release before removing the lid.
Carefully take out the trivet and remove the foil from the springform pan.
Allow the cake to cool completely before removing the springform.
Dust with powdered sugar and cinnamon and enjoy!
Video
Notes
Note: Nutrition information is a rough estimate only; actual values will vary based on the exact ingredients used and amount of recipe prepared.