Truly Crunchy Roast Potatoes Recipe
Introduction
These truly crunchy roast potatoes are the perfect golden, crispy side dish to elevate any meal. Using a clever technique with semolina and high heat oil roasting, they achieve a texture that’s crisp on the outside and fluffy on the inside. Prepare to wow your family and guests with this simple but impressive recipe.

Ingredients
- 2/3 cup (165 ml) safflower oil
- 3 lb (1.5 kg) potatoes
- 2 tbsp semolina (polenta is a great substitute)
- 2 tsp salt (increase to 3 tsp if you prefer saltier potatoes)
Instructions
- Step 1: Pour the oil into a metal or cast iron baking dish and place it in the oven. Preheat your oven to its highest setting, around 250°C (480°F) fan forced.
- Step 2: Boil a large pot of water. Peel the potatoes and cut them into large pieces about 6 cm (2.2 inches) wide.
- Step 3: Boil the potatoes for 10 minutes. Drain them thoroughly, then return them to the pot.
- Step 4: Sprinkle the semolina and salt over the potatoes. Clamp the lid on and shake the pot vigorously about 5 times to roughen the surface. Leave the lid on and set aside.
- Step 5: Check that the oil is hot enough by carefully tossing in a small piece of potato—it should sizzle immediately.
- Step 6: Carefully pour the potatoes into the hot oil, being cautious of splashes. Using a spatula or egg flip, toss the potatoes quickly to coat them evenly, then spread them out in a single layer in the pan. Place the pan in the oven.
- Step 7: Reduce the oven temperature to 220°C (425°F). Roast the potatoes for 50 minutes to 1 hour 15 minutes, turning once halfway through. They are done when golden brown with crispy edges.
- Step 8: Serve immediately for the best crunch. They remain crispy for about 30 minutes but can be reheated to regain crispness.
Tips & Variations
- Using semolina instead of flour helps create a superior crunch—polenta works well as a substitute too.
- For extra flavor, toss the potatoes with fresh herbs like rosemary or thyme halfway through roasting.
- Make sure to roughen the potatoes’ surface by shaking them; this is key to achieving maximum crispiness.
- If your oven isn’t very hot, extend the roasting time to ensure proper browning and crunch.
Storage
Store leftover roast potatoes in an airtight container in the refrigerator for up to 2 days. They can be reheated in the oven at 220°C (425°F) for about 15 minutes from room temperature, or add 5 extra minutes if reheating from cold. Avoid microwaving, as it can make them soggy.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use other oils instead of safflower oil?
Yes, you can substitute with other oils that tolerate high heat like sunflower or vegetable oil, but safflower oil is preferred for its neutral flavor and high smoke point.
Why do I need to shake the potatoes after boiling?
Shaking the potatoes roughens their surface, creating tiny ridges that become extra crispy when roasted. This step is essential for achieving the signature crunch.
PrintTruly Crunchy Roast Potatoes Recipe
This recipe delivers truly crunchy roast potatoes with a perfectly crisp exterior and fluffy interior. Using semolina to rough up the potato surface before roasting in very hot oil ensures a delicious golden crust. The process involves boiling, shaking with semolina and salt, and oven roasting at a high temperature for a long, slow finish. Ideal as a standout side dish for any roast meal.
- Prep Time: 15 minutes
- Cook Time: 1 hour 15 minutes
- Total Time: 1 hour 30 minutes
- Yield: 6 servings 1x
- Category: Side Dish
- Method: Roasting
- Cuisine: British
Ingredients
Roast Potatoes
- 2/3 cup (165 ml) safflower oil
- 3 lb (1.5 kg) potatoes
- 2 tbsp semolina (best substitute is polenta)
- 2 tsp salt (increase to 3 tsp if you prefer more salt)
Instructions
- Prepare the Oil and Oven: Pour the safflower oil into a metal or cast iron baking dish and place it in the oven. Preheat the oven to its highest temperature, ideally 250°C (480°F) fan forced, to get the oil hot and ready for roasting.
- Boil the Potatoes: Bring a large pot of water to a boil. Peel the potatoes and cut them into large pieces about 6 cm (2.2 inches) wide for even cooking.
- Parboil Potatoes: Boil the potato pieces for 10 minutes until just tender. Drain them well, then return them to the pot to prepare for roughing up.
- Rough Up the Potatoes: Sprinkle the semolina and salt over the potatoes in the pot. Clamp the lid on tightly and give the pot five good vigorous shakes to roughen the potato edges, which helps create the crispy crust. Leave the lid on and set the pot aside.
- Check the Oil Temperature: By now, the oil should be extremely hot. Test it by dropping a small pinch of potato into the oil; it should sizzle immediately, indicating readiness.
- Roast the Potatoes: Carefully pour the potatoes into the hot oil in the baking dish, being cautious to prevent oil splashes. Quickly use an egg flip or spatula to toss the potatoes in the oil, spreading them out evenly. Place the pan back into the oven.
- Adjust Oven Temperature and Cook: Reduce the oven temperature to 220°C (425°F). Roast the potatoes for about 50 minutes to 1 hour and 15 minutes, turning them once during cooking to ensure even browning. They are done when they are golden brown with crispy edges and have a crunchy texture.
- Serve: Serve the roast potatoes immediately for the best crunch. They will retain their crispness for about 30 minutes. To reheat and restore crispiness, place them back in the oven at 220°C (425°F) for about 15 minutes (add 5 extra minutes if reheating from the fridge).
Notes
- Use safflower oil as it has a high smoke point suitable for very hot roasting.
- Choosing uniform large potato pieces ensures even cooking and optimal crunch.
- Increasing salt to 3 tsp is suggested if you prefer a saltier flavor.
- Shaking the potatoes with semolina roughens their surface, helping the ultimately crispy texture form.
- Roasting time varies depending on oven and potato size; check for golden color and crunchiness.
- These roast potatoes crisp up well when reheated and can be served as a make-ahead side dish.
Keywords: crispy roast potatoes, crunchy roast potatoes, roasted potatoes, British side dish, perfect roast potatoes

