In a mixing bowl, combine self-raising flour and sweetened Greek yogurt until a soft dough forms. This should take about 1-2 minutes of mixing.

Lightly flour a clean surface and knead the dough briefly—just until smooth, about 30 seconds. Be careful not to over-knead.

Divide the dough into manageable pieces and roll each segment into logs. Cut the logs into small portions weighing around 8-12 grams each.

Roll each piece into a cute little ball, ensuring they are smooth and uniform in size.

Preheat your air fryer to 350°F (180°C) and lightly brush the basket with oil.

Arrange the doughnut balls in the basket, leaving space between them. Air fry for 5 minutes, checking for a golden brown appearance.

Toss the doughnut bites in melted butter while they’re still warm, then roll them in a mixture of granulated sugar and ground cinnamon.

Serve warm and enjoy, optionally drizzling with melted chocolate.