Air Fryer Cinnamon Sugar Donuts

Warm cinnamon sugar doughnuts have the familiar appeal of a soft, lightly chewy yeast dough with a buttery spiced coating. Here, the rings are cooked in the air fryer rather than deep-fried, giving them a puffed, golden exterior with less mess and no pan of hot oil to manage. The finish is deliberately simple: melted butter helps the cinnamon sugar cling while the doughnuts are still warm, creating a sweet, fragrant crust. Best served soon after cooking, they suit an afternoon treat, weekend baking project or casual dessert, with the option to refresh and re-coat before serving.
Cuisine style American bakery-style
Flavor profile Buttery • Sweet • Cinnamon-spiced
Techniques Kneading • Proofing • Air frying
Key equipment Air fryer • Rolling pin • Baking tray
Cooking style Freezer-friendly • Crowd-friendly

Why this recipe works

  • Yeasted dough texture: A short rise gives the doughnuts a soft, airy crumb rather than the denser texture of cake-style doughnuts.
  • Even golden finish: Air frying in a single layer helps the doughnuts puff and brown without deep frying.
  • Coating that clings: Brushing the warm doughnuts with melted butter helps the cinnamon sugar stick while adding richness.
  • Freezer-friendly option: Uncoated doughnuts can be frozen, reheated and finished with cinnamon sugar just before serving.

Get the most out of this recipe

Timing notes

  • Watch the dough, not just the clock: The first rise should leave the dough roughly doubled; a cool kitchen may need longer than the stated time.
  • Best served warm: The coating is at its most fragrant and the crumb at its softest shortly after air frying.
  • Same-day texture: These doughnuts are best on the day they are made, before the coating softens and the crumb firms up.

Texture tips

  • Knead until elastic: A smooth, elastic dough helps the doughnuts puff evenly and gives a softer bite.
  • Check the centres: The rings should be golden outside and cooked through in the middle; air fryer strength can vary.
  • Cool for a firmer coating: Serve warm for a softer coating, or cool on a rack if you prefer the cinnamon sugar to set slightly.

Make-ahead tips

  • Freeze before coating: Freeze the cooked doughnuts uncoated, then reheat and roll in cinnamon sugar once warm.
  • Refresh before serving: Reheat cooled doughnuts in the air fryer at 160°C (320°F) for a few minutes, then refresh the coating.
  • Keep the coating fresh: If storing, add or refresh the cinnamon sugar just before serving for the best texture.

Ingredient notes

  • Use lukewarm milk: Milk that is warm rather than hot helps the yeast activate without slowing or damaging the rise.
  • Instant yeast suits the quick method: Instant yeast can be mixed straight into the dough after a brief foamy start, keeping the process straightforward.
  • Sugar changes the finish: Caster sugar gives a lightly crunchy coating, while icing sugar creates a softer, finer finish.

Equipment you'll need

Ingredients

Dough

Cinnamon sugar coating

Instructions
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  1. Pour the lukewarm milk into a mixing bowl, then whisk in the instant yeast and caster sugar. Leave for 5 minutes until slightly foamy.
  2. Whisk in the egg, vanilla extract and melted butter. Add the plain flour and salt, then mix to a shaggy dough and knead until smooth and elastic.
  3. Cover the bowl and leave the dough to rise until doubled in size. This should take about 45 minutes in a warm kitchen.
  4. Turn the dough out and roll it to about 1.5 cm thick. Cut into rings, then place on a tray and cover while you heat the air fryer to 180°C (355°F).
  5. Air fry the doughnuts in batches in a single layer for 5 to 6 minutes, turning halfway, until puffed and golden. Cook the centres until no longer doughy.
  6. Mix the caster sugar and ground cinnamon in a bowl. Brush the warm doughnuts all over with the melted butter, then roll in the cinnamon sugar until well coated.
  7. Serve warm, or cool on a rack if you prefer a firmer coating. Re-coat lightly in cinnamon sugar just before serving if needed.

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Recipe notes

Tips

  • Keep the milk just lukewarm so the yeast activates properly; if it is hot, it can slow the rise.
  • Do not overcrowd the air fryer basket, as the doughnuts need room to puff and brown evenly.
  • Food safety: if serving to pregnant people, young children, older adults, or anyone immunocompromised, use eggs that are produced under a food safety standard suitable for raw or lightly cooked preparations.

Substitutions

  • Replace Vanilla extract with vanilla bean paste for a fuller vanilla note.
  • Replace Caster sugar in the coating with icing sugar for a softer, less crunchy finish.

Storage

  • Refrigerate up to 2 days
  • Best eaten the day they are made. Store cooled doughnuts in an airtight container for up to 2 days; refresh in the air fryer at 160°C (320°F) for 2 to 3 minutes, then roll again in cinnamon sugar. Freeze uncoated doughnuts for up to 2 months and coat after reheating.

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Recipe overview

  • Servings: 10 pieces
  • Yield: doughnut rings
  • Total time: 1h 35min (30min active)
  • Difficulty: Medium
  • Cuisine: American
  • Allergens:
    Eggs Gluten Milk Wheat
Freezer friendly Kid friendly

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