Air Fryer Recipe

Battered King Prawns

  • Prep: 10 min
  • Cook: 10 min
  • Total: 20 min
  • Serves: 4
  • Category: Mains
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Battered King Prawns

These battered king prawns are just right for the air fryer, giving you crisp, golden results with less oil than traditional frying.

Ingredients

  • 500g of king prawns, peeled and deveined
  • 120g of plain flour
  • 60g of cornflour
  • 1 tsp baking powder
  • 200ml of sparkling water (kept chilled)
  • Salt and pepper to taste
  • 1 tbsp light soy sauce
  • 1/2 tsp garlic powder
  • 1/2 tsp paprika
  • A spray bottle of oil suitable for air fryers (light olive oil or avocado oil)

Method

  1. Clean the king prawns and pat them dry.
  2. Preheat the air fryer to 200°C (392°F).
  3. In a large bowl, mix together the plain flour, cornflour and baking powder.
  4. Gradually whisk in the chilled sparkling water until you have a smooth batter.
  5. Stir in the soy sauce, garlic powder, paprika, salt and pepper.
  6. Dip each prawn into the batter, letting any excess drip off.
  7. Arrange the prawns in a single layer in the air fryer basket and lightly spray with oil.
  8. Air fry for 8-10 minutes, until golden brown and crispy.

Why this works in an air fryer

Cornflour limits gluten and dries into a brittle shell, while chilled sparkling water and baking powder create bubbles that expand fast in the air fryer’s hard convection. Pat-dry prawns stop the batter sliding off; a light oil mist helps the starches brown rather than bake up pale and floury.

Equipment notes

Assumes a 5–6 litre basket holding about 12–16 large prawns with gaps; cook in batches if they touch. In a single-drawer air fryer, shake or turn once at 5 minutes for even browning; in dual-zone models, split the prawns evenly and expect 1–2 minutes longer if both drawers are running.

Common pitfalls

  • Batter pooling under the prawns by minute 3? It is too loose or the prawns were wet; whisk in 1–2 tbsp cornflour and pat the next batch drier before dipping.
  • Pale, dusty patches after 8 minutes? The oil spray missed those areas; mist lightly again and cook 1–2 minutes more, avoiding heavy oil that makes the coating leathery.
  • Coating tearing off when turned? It has not set yet or the basket was not hot enough; preheat fully and leave the prawns undisturbed for the first 5 minutes.
  • Rubbery prawns with a dark shell? They are overcooking before the batter crisps; use larger prawns, keep them in one layer, and reduce to 190°C for the final batch if your air fryer runs hot.

Variations & substitutions

  • Swap paprika for cayenne or chilli powder for heat; the batter browns the same, but taste before adding extra salt as heat can make soy seem saltier.
  • Use rice flour instead of plain flour for a lighter, more brittle coating; it may colour slightly less, so rely on crispness rather than deep gold.
  • Replace sparkling water with cold lager for a malty batter; keep it chilled and cook as written, as warm beer makes a flatter coating.
  • Add 1 tsp sesame oil to the batter for a prawn-toast note; reduce the oil spray slightly because sesame oil on the surface can darken quickly.

Storage & reheating

Keep leftovers chilled for up to 2 days and reheat in a single layer at 180°C for 3–5 minutes until hot and re-crisped.

Nutrition

Calories: 250

Equipment you'll need

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