Add all your ingredients (except melted pb) to small blender and blend till smooth.
Add better to your 6.5in Cast Iron Skillet. Then swirl in your 10g melted pb.
Air fry on 250 degrees F for 17 minutes.
Let cool at room temp for about 30 minutes. Then add to fridge for at least a few hours to really thicken up. Ideally the longer the better. I like overnight. Just make sure you cover it with some type of plastic wrap.