AIR FRYER BAKING METHOD BELOW:
1) Pre-heat AF @ 140degrees for 5mins
2) Bake @ 140degrees for 15mins. Different Air Fryer size may affect ideal temperature. I’m using Philips XXL AF. High temperature will have your buns to rise too fast & cause big air holes below your crust (hence the dent in)
3) Leave buns in AF for 2mins before removing to be cooled on rack. Try to cool it down outside the tray with baking paper removed to avoid a soggy bottom (cooling on rack — with holes below allows for hot air to travel out of the bun) Cover with cloth for it to cool down to prevent crust from deflating due to sudden temperature change and keeps the buns from drying out.
(if the bottom of your buns become moist due to moisture heat, just flip your buns over and throw it in the AF to bake for 1min @ 140degrees)
4) Serve if you must but I prefer to keep mine overnight for breakfast the next day. After cooling on the rack, I move them into my air tight Lock & Lock container. This is how the buns turned out to be after bake