There are roasted potatoes and then there are roasted potatoes like these Vegan Garlic Parmesan Roasted Potatoes — the kind that come out of the oven so impossibly crispy and so golden and so deeply fragrant with roasted garlic and nutty vegan parmesan and fresh herbs that you eat four of them off the pan before they have made it to the table, and then you put the pan on the table and everyone takes four more, and then you look at each other across an empty pan and someone says out loud what everyone is already thinking: we need to make another batch. This is that recipe. The one that turns a humble potato into something that absolutely commands the table. The one that gets requested every single time. The one that, once made, becomes the permanent answer to the question of what to do with potatoes.
The secret is the cut. Baby potatoes halved and roasted cut-side down on a very hot, very lightly oiled sheet pan develop a crust on their flat face that is genuinely, remarkably crispy — a thin, golden, slightly lacquered exterior that gives way immediately to a fluffy, steaming, tender interior. This is the potato at its best: maximum contrast, maximum texture, maximum flavor. The vegan parmesan — made from nutritional yeast, cashews, and garlic — coats every potato in a savory, nutty, umami-rich layer that caramelizes against the hot pan into something almost cheesy in the best possible way. The roasted garlic, cooked alongside the potatoes until it is soft and sweet and golden, melts into the oil and coats everything around it in a fragrance that is one of the most deeply satisfying smells in all of cooking.
What makes this recipe so outstanding is the parboiling step — simmering the potatoes for just 8 minutes before roasting roughens their surface, creating a texture that absorbs oil and seasoning more effectively and produces a crispier, more evenly golden crust than raw potatoes can ever achieve in the same amount of time.
This recipe is 100% vegan, naturally gluten-free, ready in about 45 minutes, and the kind of side dish that instantly becomes the most popular thing on the table.
Recipe Information
| Prep Time | Cook Time | Total Time | Servings | Calories |
|---|---|---|---|---|
| 10 mins | 35 mins | 45 mins | 4 | ~290 kcal |
Ingredients
For the Potatoes
- 900g (2 lbs) baby potatoes (or small Yukon Gold potatoes), halved
- 3 tbsp olive oil
- 6 cloves garlic, minced (or left whole for a milder flavor)
- 1 tsp garlic powder
- 1 tsp onion powder
- ½ tsp smoked paprika
- ½ tsp dried oregano
- ½ tsp dried thyme
- ½ tsp black pepper
- 1 tsp salt (plus more for the parboiling water)
For the Vegan Parmesan
- ⅓ cup (45g) raw cashews
- 3 tbsp nutritional yeast
- ½ tsp garlic powder
- ¼ tsp salt
- 1 tbsp olive oil (to help the parmesan adhere)
For Finishing
- 2 tbsp fresh flat-leaf parsley, finely chopped
- 1 tbsp fresh chives, sliced (optional)
- Zest of ½ lemon
- Extra nutritional yeast for serving
- Flaky sea salt
Instructions
- Parboil the potatoes. Bring a large pot of heavily salted water to a boil. Add the halved potatoes and cook for 8 minutes — they should be just beginning to soften at the edges but still firm at the center; a skewer should meet some resistance. Drain and shake in the colander vigorously for 30 seconds — this bashing and shaking roughens the surface of the potato, creating the textured exterior that becomes irresistibly crispy in the oven. Leave to steam dry in the colander for 5 minutes.
- Preheat the oven and pan. While the potatoes parboil, preheat the oven to 425°F (220°C) with a large rimmed baking sheet inside. The hot pan is essential — placing the potatoes on a cold pan and then putting it in the oven produces a steamed result; placing them on a screaming-hot pan produces an immediate sear on the cut face that is the foundation of the crispy crust.
- Make the vegan parmesan. Add the raw cashews, nutritional yeast, garlic powder, and salt to a small food processor and pulse 8–10 times until the mixture resembles fine, dry crumbs — the texture of grated parmesan. Do not over-process into a paste. If you do not have a food processor, finely chop the cashews by hand and combine with the other ingredients. Set aside.
- Season the potatoes. In a large bowl, combine the parboiled, dried potatoes with the olive oil, minced garlic, garlic powder, onion powder, smoked paprika, dried oregano, thyme, black pepper, and salt. Toss vigorously to coat every potato evenly. Add the tablespoon of olive oil from the finishing ingredients and the vegan parmesan and toss again until the parmesan coats every potato.
- Roast. Carefully remove the hot baking sheet from the oven. Working quickly, arrange the potatoes cut-side down in a single layer on the hot pan — do not crowd them, as overlapping potatoes steam rather than roast. If needed, use two baking sheets. Scatter any remaining parmesan and garlic from the bowl over the top. Slide into the oven and roast for 20 minutes without opening the door or moving the potatoes.
- Flip and finish. After 20 minutes, check the cut face — it should be deeply golden and lifting easily from the pan. If it is sticking, give it another 3–4 minutes. Flip each potato cut-side up and return to the oven for a further 10–12 minutes until the skin side is golden and the parmesan coating is browned and fragrant.
- Finish and serve. Transfer the potatoes to a serving platter. Immediately scatter the fresh parsley, chives, and lemon zest over the top — the heat of the potatoes will briefly cook the fresh herbs, deepening their color and fragrance. Finish with flaky sea salt and an extra dusting of nutritional yeast. Serve immediately.
Pro Tips
- Parboil before roasting — this is the technique professional kitchens use for perfect roast potatoes and it makes an enormous difference. The brief parboil softens the interior slightly and roughens the exterior, and the vigorous shake in the colander creates a fluffy, textured surface that crisps magnificently in the oven. Raw potatoes roasted from scratch require much longer cooking and never achieve the same crust.
- Heat the pan before adding the potatoes — this is non-negotiable. The hot pan creates an instant sear on the cut face of the potato, producing a crust that begins forming in the first seconds of contact rather than developing slowly from a cold start. A cold pan means steaming; a hot pan means roasting.
- Do not crowd the pan — potatoes placed too close together create steam rather than a dry, circulating heat, and they stew rather than roast. Every potato needs space for hot air to circulate around it. Use two pans if necessary and switch their rack positions halfway through.
- Season aggressively — potatoes absorb seasoning deeply during roasting, and what tastes over-salted on the raw potato will taste perfectly seasoned in the finished dish. Taste the seasoning mixture before coating and make sure it is boldly flavored.
Why Parboiling Makes the Crispiest Potatoes
The science of the perfect roast potato is, at its core, the science of the crust — and the crust is the product of two things: surface texture and moisture removal. A potato straight from the bag has a smooth, moist surface that lies flat against the pan and produces even contact but limited surface area for crisping. A parboiled, shaken potato has a roughened, slightly ragged surface — the outer layer of starch has gelatinized and then begun to break down under the vigorous shake — with dramatically more surface area, more nooks and ridges for the oil to coat and the heat to act on, and a drier exterior from the steam-drying in the colander. When this roughened, dry surface hits a very hot, lightly oiled pan, the starch on the exterior begins to dehydrate and caramelize almost immediately, forming a crust in the first ten minutes that a raw potato would take forty minutes to achieve and would never achieve with the same evenness. The parboil is not a convenience step. It is the technique that separates average roast potatoes from exceptional ones.
Flavor Variations
- Lemon Herb Garlic Potatoes: Replace the smoked paprika with extra lemon zest and add 1 teaspoon of dried rosemary to the seasoning for a bright, herby version where lemon and rosemary are the primary flavors.
- Spicy Calabrian Chilli Potatoes: Add 1 tablespoon of Calabrian chilli paste or ½ teaspoon of crushed red pepper flakes to the oil coating for a fiery, Italian-inspired version with a slow-building heat.
- Truffle Parmesan Potatoes: Replace 1 tablespoon of the olive oil with truffle oil and add an extra tablespoon of nutritional yeast to the parmesan mixture for an indulgent, deeply earthy version that tastes genuinely luxurious.
Nutritional Highlights (Per Serving)
| Calories | Protein | Carbs | Fiber | Fat |
|---|---|---|---|---|
| ~290 kcal | 8g | 40g | 5g | 11g |
Storage
- Refrigerator: Store leftover roasted potatoes in an airtight container for up to 4 days. Reheat in a 400°F (200°C) oven or air fryer for 8–10 minutes to restore crispness — microwaving makes them soft and slightly rubbery.
- Air fryer reheating: The air fryer is the best method for reheating roasted potatoes. 375°F (190°C) for 5–6 minutes produces a result almost identical to freshly roasted.
- Freezing: Not recommended — roasted potatoes lose their crust texture on thawing and become watery. Make fresh for the best result.
Frequently Asked Questions
Can I use larger potatoes instead of baby potatoes?
Yes — larger Yukon Gold or russet potatoes cut into 3–4cm chunks work well. Increase the parboiling time to 12 minutes and the roasting time by 5–10 minutes. Baby potatoes are preferred because their ratio of skin to interior is higher, producing more crispy surface area per bite.
Can I make these in an air fryer?
Yes — air fryers produce excellent roasted potatoes with less oil. Parboil and season as directed, then cook in the air fryer basket at 400°F (200°C) for 18–20 minutes, shaking halfway through. The parmesan coating may not adhere quite as evenly in the air fryer but the crust is outstanding.
What is vegan parmesan made of?
The vegan parmesan in this recipe is made from raw cashews, nutritional yeast, garlic powder, and salt — blended to the texture of grated parmesan. Nutritional yeast provides the savory, cheesy, umami depth; cashews provide the fat and body; together they coat the potatoes in a layer that caramelizes into a genuinely parmesan-like crust. Store-bought vegan parmesan can also be used.
Can I make these ahead for a dinner party?
Yes — parboil the potatoes, season, and store covered in the refrigerator for up to 24 hours. When ready to serve, roast on a hot sheet pan as directed, adding 5 minutes to account for the cold start. Do not add the fresh herbs until just before serving.
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