
Deep-fried roast potatoes are a delicious, crunchy treat that can be served as a snack or a side dish. They are a versatile dish that can be adapted to suit a range of occasions and personal preferences. In this guide, we will take you through the steps to achieve golden, crispy roast potatoes with a fluffy interior. We will also explore the different types of potatoes that are best suited for this cooking method and provide tips on how to get the perfect deep-fried roast potatoes.
How to Cook Roast Potatoes in a Deep Fat Fryer
| Characteristics | Values |
|---|---|
| Potato Varieties | Russet, Yukon Gold, Maris Piper, King Edward, Desiree, Charlotte |
| Potato Preparation | Peel and rinse, cut into chunks, boil until tender, parboil, soak in cold water |
| Oil Type | Peanut, corn, palm, olive, duck, goose, beef, Frymax |
| Oil Temperature | 175–190°C (350–375°F) |
| Frying Time | 4-5 minutes until golden brown |
| Seasonings | Salt, pepper, onion powder, garlic powder, dried oregano, smoked paprika, rosemary |
| Serving Suggestions | Ketchup, mayo, garlic aioli, peri peri, ranch sauce, burgers, steak, grilled chicken, fish |
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What You'll Learn

Choosing the right potato variety
Starch Content:
Starch content is a crucial factor when choosing potatoes for deep frying. High-starch potatoes, such as Russet or Yukon Gold, tend to yield a crispier texture when fried. The high starch content helps create a delightful golden crust while keeping the interior fluffy and tender. Before frying, it is advisable to soak high-starch potatoes in cold water to remove excess starch, ensuring that signature crunch.
Texture and Taste:
The texture and taste of potatoes vary across different varieties. For a fluffy texture and creamy taste, Maris Piper potatoes are an excellent choice. This variety is also renowned for its ability to hold its shape during cooking, making it ideal for achieving crispy roast potatoes. King Edward potatoes, on the other hand, offer a floury texture and a rich flavour profile. Their creamy consistency and slightly sweet taste make them perfect for creating crispy roast potatoes with a fluffy interior.
Visual Appeal:
If you're looking to add a pop of colour to your dish, consider using Desiree potatoes. With their vibrant red skin and creamy texture, Desiree potatoes bring a touch of elegance to your plate. They hold their shape well during cooking, making them versatile for boiling, roasting, and frying.
Versatility:
Some potato varieties are prized for their versatility and can be used in various dishes. Charlotte potatoes, for instance, boast a firm texture and delicate, buttery taste. They are perfect for boiling, steaming, and roasting, and their quick cooking time makes them a chef's favourite.
Personal Preference:
Ultimately, choosing the right potato variety depends on your personal preference. Experiment with different varieties to find the one that suits your taste and cooking style. Whether you prioritise texture, taste, or visual appeal, there is a potato variety that will elevate your deep-fried roast potatoes to the next level.
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Preparing the potatoes
Select the Right Potato Variety:
When it comes to deep-frying, choose potato varieties that are known for their starchy or floury texture. Maris Piper, King Edward, Russet, and Yukon Gold potatoes are excellent options. These types of potatoes will give you the desired crispness on the outside and fluffiness on the inside.
Peel and Cut the Potatoes:
Start by peeling the potatoes. Then, cut them into large pieces or chunks. You can cut them into quarters, sixths, or eighths, depending on the size of the potatoes. Larger chunks will provide a better contrast between the exterior and interior texture.
Parboil the Potatoes:
Fill a pot with enough water to cover the potatoes. Add a generous amount of salt to the water, as it will season the potatoes and enhance their flavour. You can also add a pinch of baking soda, which will help break down the potato surfaces and create a starchy slurry for added crunch. Bring the water to a boil and carefully add the potato chunks. Cook them until they are just tender but still firm, which usually takes around 10-12 minutes.
Drain and Dry the Potatoes:
After parboiling, drain the potatoes in a colander. Let them cool down slightly, about 5 minutes, and then pat them dry with a kitchen towel or paper towels. This step is important to remove excess moisture before frying.
Coat the Potatoes (Optional):
If you want an extra crispy coating, you can dredge the parboiled potatoes in a flour mixture. You can use plain flour, semolina, or a combination of both. After coating with flour, you can also dip the potatoes into a wet batter and then coat them with a spice mix. This step is optional but will add extra flavour and texture to your roast potatoes.
Heat the Oil:
Choose an oil with a high smoke point, such as sustainable palm oil, peanut oil, or corn oil. Heat the oil in your deep fryer or a large pot to the ideal temperature of 175-190°C (350-375°F). This temperature range will ensure your potatoes achieve a golden-brown exterior and a perfectly cooked interior.
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Preparing the oil
Next, heat the oil to the right temperature. The ideal temperature range for deep-frying potatoes is 175–190°C (350–375°F). This temperature will give your potatoes a golden-brown exterior and a perfectly cooked interior.
If you want to infuse your potatoes with extra flavour, you can add ingredients such as garlic and herbs to the oil before frying. To do this, combine olive oil, duck fat, or beef fat with rosemary, garlic, and black pepper in a small saucepan. Heat this mixture over medium heat, stirring constantly, until the garlic just begins to turn golden (about 3 minutes). Then, strain the oil through a fine-mesh strainer and set the garlic and rosemary mixture aside.
Finally, when the oil has reached the desired temperature, you can gently place the potatoes into the fryer. Depending on the size of your fryer, you may need to fry the potatoes in batches to avoid overcrowding.
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Frying the potatoes
When frying the potatoes, heat your oil of choice to 175–190°C (350–375°F). Peanut, corn, or palm oil are good options for deep frying. Once the oil is hot, gently place a few potato pieces into the fryer, being careful not to crowd the fryer. Fry the potatoes for 4 to 5 minutes, or until they turn a deep golden brown.
Remove the potatoes from the oil with a slotted spoon or a fry basket and place them on paper towels to absorb excess oil. Season the potatoes with salt or your favourite spice blend. You can also sprinkle on some dried herbs like rosemary or smoked paprika for extra flavour.
If you're not eating the potatoes right away, you can keep them warm in an oven set to 200°C. However, if you have leftovers, it's best to refrigerate them. You can enjoy your crispy roast potatoes as a side dish or snack, pairing them with sauces like ketchup, mayo, or garlic aioli.
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Serving the potatoes
Deep-fried roast potatoes are best served hot and crispy. If you're not serving them immediately, keep them warm in an oven set to around 200°C. You can also refrigerate any leftovers and enjoy them cold later. They go well with a variety of condiments and sauces, such as ketchup, mayo, ranch dressing, or garlic aioli. For a gourmet twist, experiment with seasoning blends like garlic powder, smoked paprika, or freshly chopped herbs like rosemary.
These potatoes are incredibly versatile and can be served as a side dish or incorporated into larger meals. They complement proteins like grilled chicken, steak, or fish. You can also serve them with classic dishes like burgers or sandwiches. If you're feeling adventurous, try pairing them with creative sauces like peri peri for a zesty kick.
The type of potato you use can also enhance your serving options. For example, the Desiree potato, with its vibrant red skin, adds visual appeal to dishes, making it perfect for potato salads or mashed potatoes. The Charlotte potato, with its thin, smooth skin and waxy flesh, is excellent for boiling, steaming, and roasting, and its quick cooking time makes it a convenient choice.
Lastly, don't forget that presentation is key! Whether you're serving these potatoes as a casual snack or a gourmet platter, take the time to arrange them neatly and add some garnish for that extra touch of elegance. Enjoy your deep-fried roast potatoes!
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Frequently asked questions
Maris Piper, King Edward, Russet, and Yukon Gold potatoes are all recommended for roasting and frying.
First, parboil the potatoes in salted water for 10-12 minutes. Then, drain the water and return the potatoes to the pot. You can then add a coating, such as plain flour and semolina, or leave them uncoated.
The ideal temperature for frying potatoes is between 175-190°C (350-375°F).








































