Add your apple juice and fresh cranberries into your pot. Drizzle your maple syrup on top and put your cinnamon stick in the middle. Close your lid and steam valve and set to high pressure for 1 minute.
Allow to naturally release for 3 minutes. Release rest of steam and lift lid. Turn pot off and then set to saute. Sprinkle in your last 4 oz. of fresh cranberries and cup of sugar, stir.
Allow to bubble for about 1-2 minutes, stirring until a few of the fresh cranberries begin to pop. When you hear 3-4 pop open turn your Instant Pot off and allow it to continue to bubble and thicken your cranberry sauce as it cools down and sits.