Prep apples by peeling, coring, and chopping into chunks about 1 inch.
Add apples to the Instant Pot. Pour in apple cider and sprinkle in both sugars, cinnamon, nutmeg, cloves, allspice, and salt.
Stir to coat the apples evenly, then secure the lid and set to Pressure Cook on High for 10 minutes.
Let pressure release naturally for 10 minutes, then quick-release any remaining steam and open the lid.
Blend the cooked apples with an immersion blender until completely smooth.
Switch to Sauté (Low). Stir often and simmer 15–20 minutes until thick and glossy. Stir in lemon juice and vanilla. Taste and adjust spices or sweetness.
Cool to room temperature. Transfer to clean jars and refrigerate.