Pre-heat Air Fryer at 320°F (160°C). Set at 18 minutes.
In a bowl, whisk softened cream cheese until smooth with the use of a mixer. Gradually add confectioner’s sugar and continue whisking until well combined.
Add Biscoff spread and continue to whisk until blended, about 5 seconds. Spoon the sides and continue whisking for another 5 seconds.
Add flour, salt, and baking powder. Whisk at low and spoon the sides in between whisking.
Add egg and vanilla. Continue mixing but do not over mix.
Place silicone molds in a pan for a sturdy container and one time easy transfer.
Fill each silicone mold with the Biscoff batter, to the brim.
Gently transfer pan onto the Air Fryer tray and slowly insert tray into the middle cooking chamber, near the rotisserie catch.
Air Fry for 15 to 18 minutes or until an inserted toothpick at the middle comes out clean.
Remove from the Air Fryer cooking chamber and allow to cool for a few minutes. (See notes)
Notes
This Air Fryer recipe uses an Instant Vortex Plus Air Fryer Oven. Not all Air Fryers cook the same way. It’s best to keep watch during your initial tests after purchasing.TIPS:Insert a toothpick at the last 2 to 3 minutes. If the toothpick comes out with some batter, you can cancel the Air Fryer but do not remove the muffins.Allow the heat of the Air Fryer to continue cooking the muffins for about 10 minutes. Then remove from the cooking chamber and cool for 5 to 10 minutes. The residual heat from the Air Fryer cooking chamber will continue to cook the muffins without overly browning the top.