01 -
In a medium bowl, whisk together flour, brown sugar, baking powder, pumpkin pie spice, and kosher salt until evenly blended.
02 -
In another bowl, thoroughly mix pumpkin purée, egg, whole milk, vanilla extract, and melted butter until smooth and incorporated.
03 -
Gradually fold the dry ingredients into the wet mixture, stirring gently until just combined without overmixing to ensure tender donut holes.
04 -
Using a spoon or small scoop, portion batter into evenly sized rounds and place on a parchment-lined or lightly greased tray.
05 -
Preheat air fryer to 360°F. Arrange donut holes in a single layer with space between them, cooking in batches if necessary for 8–10 minutes until golden and puffed.
06 -
While still warm, lightly brush donut holes with melted butter, then roll in combined granulated sugar and ground cinnamon to coat evenly.