Master the art of the perfect roast potato! Crispy on the outside, fluffy on the inside. Discover my secret technique for achieving that restaurant-quality crunch at home.
Honestly, is there anything better than a perfect roast potato? For me, the ultimate Sunday roast isn’t complete unless these beauties are sitting on the plate. I’ve spent years tinkering with methods—boiling, steaming, different types of fat—but I’ve finally landed on the one that gets them consistently golden, shattered-glass crunchy on the outside, and like a cloud on the inside.
I usually make these whenever I want to impress, but they’re actually super simple once you know the secret (hint: it’s all in the prep!). If you’ve ever struggled with soggy spuds, this is the recipe that changes everything.
Ingredients
2 kg Maris Piper or King Edward potatoes (starchy varieties are best!)
4–5 tbsp Duck fat, goose fat, or high-quality vegetable oil
2 tbsp Semolina (my secret for that extra crunch)
Salt (to taste)
Fresh rosemary or thyme sprigs (optional, for that gorgeous aroma)
Method: The Road to Perfection
Prep the Spuds: Peel your potatoes and cut them into large, even chunks. I usually go for about 5cm pieces so they get that great surface area.
The Par-boil: Place them in a large pot of salted cold water. Bring to a boil and cook for about 8–10 minutes until the edges are just starting to soften. This is crucial—don’t overcook them, or they’ll fall apart!
The “Fluff”: Drain the potatoes and let them steam dry for 5 minutes. Then, give the colander a really good shake. You want the edges to look rough and floury; that’s where the crispiness comes from!
The Heat: Preheat your oven to 200°C. Pour your fat into a heavy roasting tray and put it in the oven for 10 minutes until it’s smoking hot.
Coat & Season: Toss the potatoes in the semolina and a good pinch of salt until they’re lightly coated.
The Roast: Carefully add the potatoes to the hot fat (watch out for the sizzle!). Spoon the fat over them, add your herbs, and roast for 45–60 minutes, turning them halfway through, until they’re deep golden brown all over.
Cooking Tips for Success
Don’t crowd the pan: If the potatoes are touching, they’ll steam instead of roast. Use two trays if you have to.
Temperature matters: Never add potatoes to cold oil. The fat needs to be piping hot so they start frying the second they hit the tray.
The “Roughing” trick: Shaking them in the colander is non-negotiable. The more texture you have on the surface, the crunchier they’ll be.
Serving Suggestions
These go perfectly with a classic roast chicken or beef, but I honestly love them with just a dollop of garlic aioli or as the main star of a veggie plate. Serve them immediately—they’re at their best right out of the oven!
Nutrition Info (Approx. per serving)
Calories: 250 kcal
Fat: 10g
Carbohydrates: 35g
Protein: 3g
Frequently Asked Questions
1. Can I use olive oil? Yes, you can, but it has a lower smoke point than duck fat or vegetable oil. If using olive oil, keep an eye on them so it doesn’t burn!
2. Why do you use semolina? It acts as a little “crunch layer” on the outside of the potato. It creates a much crispier finish than flour alone.
3. Can I prep these in advance? Absolutely! You can par-boil and fluff them a few hours before you need them. Just keep them in the fridge and roast when you’re ready.
4. How do I know when they are done? They should be a deep, rich golden brown and feel firm when you gently prod them with a fork.
5. Are these gluten-free? Semolina contains wheat, so it is not gluten-free. If you need a gluten-free option, you can skip the semolina or use a gluten-free flour alternative, though the crunch might be slightly different.
Final Thoughts Making perfect potatoes takes a little patience, but the result is so worth it. Give this method a try next weekend and let me know how your crunch levels turn out!

