Place the apple pieces, apple juice, sugar and cinnamon in the pressure cooker and stir to combine. Select High Pressure and set cook time for 4 minutes. (It took about about 10 minutes to come up to pressure.)

After timer beeps use the quick release method to release the pressure. (You could also use a natural pressure release, but I'm impatient.)

Stir apples, breaking up large chunks, until you've achieved your desired consistency. (Or you can take the easy way like I did and blend the apples with an immersion blender in the pot.)