Preheat your air fryer to 325°F (160°C) for 3-4 minutes.
Meanwhile, warm your ghee or coconut oil, then carefully wash and halve each peach, removing the pits (stones) and then dabbing each half dry of water (a bit of juice is fine).
Brush the ghee onto the cut side of each peach half, then put them cut side (flat side) down into your preheated air fryer and brush ghee onto the outsides, as well, and cook for 7 minutes.
While you do that, mix together the butter, coconut sugar, cardamom, cinnamon (if using) and vanilla in a bowl, but don't microwave everything for more than 15 seconds if you need to soften the butter. The residual heat will be sufficient to soften everything without getting it too liquid.
Once the peaches have pre-cooked, flip them over in the air fryer so the flat part is now facing you, and then dollop or pour a quarter of your spiced butter mixture into each peach half and air fry them for another 6-8 minutes, until fork-tender and lightly golden, but not falling apart. Serve hot, drizzled with cream and honey, if desired.