Slice your fresh peaches, removing the stones as you go.
Remove the rind and the juice from a medium lemon.
Dump into your Instant Pot the peaches, lemon, caster sugar, honey and vanilla essence.
Place the lid on the Instant Pot, set the valve to sealing and cook for 2 minutes on manual pressure.
Allow natural pressure release for 10 minutes.
Manually release pressure after 10 minutes and stir the contents of your Instant Pot.
Add in your pectin/thickener and stir.
Using a hand blender, blend the contents of the Instant Pot until nearly smooth.
Pour into mason jars and place in the fridge.
Leave to chill for 12 hours and then freeze or eat!