Spread half of the cake batter in the bottom of the cake pan, using an offset spatula. Top with half of the apple mixture.
Repeat layers and cover the top of the pan with foil.
Pour 1 cup of water in the bottom of pressure cooker. Place cake pan on sling and lower into the Instant Pot.
Secure the lid and make sure the valve on top is set to “SEALING.”
Select HIGH PRESSURE and a cook time of 60 minutes.
When cook time ends, do a quick release of pressure by moving the valve on top to VENTING.
Remove cake by lifting the sling out of the Instant Pot. Remove the foil carefully.
Serve and enjoy warm!
Notes
First, this cake is best eaten warm. Whether you’re enjoying it right after cooking, or heated up the next day, the cinnamon apple flavor is best when warm.
I like to add a generous amount of powdered sugar to the top of this cake! Then of course a scoop of ice cream is amazing too.