01 - Peel, core, and slice apples into 1/2-inch thick wedges using a sharp knife and cutting board.
02 - Place apple slices in the Instant Pot insert. Sprinkle brown sugar, cinnamon, nutmeg, and salt evenly over the top. Drizzle with maple syrup or honey, then add water or apple juice.
03 - Distribute butter pieces evenly across the apple mixture.
04 - Close and lock the lid, ensuring the steam release valve is set to sealing. Select Manual or Pressure Cook mode on high pressure for 2 minutes.
05 - Allow natural pressure release for 3 minutes, then carefully quick-release any remaining pressure by turning the valve to venting.
06 - Open the lid and gently stir in vanilla extract. For a thicker sauce, select Sauté mode and simmer 2-3 minutes, stirring occasionally. Serve warm.