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Unlock Restaurant-Quality Crispy Roast Potatoes with This Air Fryer Technique
Achieving perfectly crispy roast potatoes, especially using an air fryer, can transform any meal. While seemingly simple, obtaining that coveted golden-brown crunch can be challenging. However, culinary experts suggest a straightforward method to elevate your air fryer roasties to achieve that delightful, restaurant-quality crispness everyone desires. This technique focuses on a crucial preparation step before cooking.
The Preparation Secret for Extra Crispy Potatoes
According to specialists at Campbells Meat, an online butchery, the secret to superior crispiness lies in how you treat the potatoes before they enter the air fryer. Their recommendation highlights a simple yet effective pre-cooking treatment:
- “After peeling and chopping your potatoes, introduce half a teaspoon of bicarbonate of soda to the boiling water during the parboiling phase.”
This addition of bicarbonate of soda to the water gently softens the potato’s surface and encourages the release of surface starch. This process is fundamental in creating an ideal base for achieving maximum crispness during air frying.
Boosting Crispness Further: The Post-Parboiling Step
Parboiling is only the first step in this method. To achieve truly exceptional crispiness, another technique is recommended immediately after parboiling.
“Once the potatoes are parboiled, properly drain them and then gently agitate them in the pan,” advise the culinary specialists.

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This shaking action roughens the potato edges, effectively increasing the surface area. This roughened texture is key as it allows for enhanced absorption of fat and promotes significantly improved crunch.
Enhancing Texture with Semolina or Flour
For those seeking an even more pronounced textural finish, the experts suggest an additional element to further amplify crispiness.
“To achieve an even greater crunch, consider adding a light dusting of semolina or flour. This will further contribute to achieving the ultimate desired texture.”
Adding Flavor and the Role of Fat
If you are looking to introduce different flavor profiles, you can substitute flour with a crushed stock cube for an intensified savory (umami) flavour. Once the potatoes are meticulously prepared, the next critical step is coating them in fat.
“Coat the potatoes generously in duck fat, or your preferred alternative cooking fat, along with a pinch of salt and pepper for seasoning,” the experts stated.
Fat is not just about flavor; it is crucial for achieving beautifully crisp potatoes in the air fryer. It imparts richness and plays a vital role in the browning and crisping process during cooking.
Optimal Air Fryer Settings and Technique
For optimal results, setting the air fryer temperature to 180C (approximately 350F) is recommended. It is also crucial to arrange the potatoes correctly within the air fryer basket.
“Ensure the potatoes are arranged in a single layer within the air fryer basket, avoiding overcrowding to promote even cooking and browning,” they advised.
Halfway through the cooking time, around the 30-minute mark, give the potatoes a shake to ensure all sides achieve even browning and maximum crispiness. This simple step guarantees uniformly cooked and exquisitely crispy air fryer roast potatoes.