Hasselback root vegetables are the kind of side dish that steals the show from the main course. Carrots, parsnip and parsley root are sliced into thin fans, brushed with butter and baked until the edges turn crisp and caramelised, while the middle stays soft and sweet.
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The technique comes from the Swedish Hasselback potatoes, but root vegetables have a completely different sweetness that the air fryer brings out, because the circulating heat reaches every single cut surface. With butter, whole garlic cloves, rosemary and thyme you get a side dish that looks like something from a restaurant, but that in practice only calls for a sharp knife and a little patience at the cutting board.
Estimated reading time: 4 minutes
Table of Contents:
Why I love Hasselback root vegetables in the air fryer
The air fryer does something to the Hasselback cut that an ordinary oven struggles to match. The hot air blows down into every single groove and dries the surface before it browns — and that is exactly where the crisp texture comes from. In the oven you usually wait longer for the same result, because the air sits more still around the roasting tin.
At the same time the portion size fits an air fryer basket perfectly. There is no need to fire up a big oven for four carrots, and you can keep an eye on the browning as you go without letting the heat out of the whole oven. The root vegetables sit with air around them in the basket instead of steaming in their own juices in a roasting tin.
How to get the cuts perfectly even
The most important trick is to place the root vegetable between two chopsticks on the cutting board before you slice. The knife stops against the sticks, and you avoid cutting all the way through. Aim for about three millimetres between the cuts — closer cuts give you more crisp edges, but also a greater risk that the thin fans snap when you lift the root vegetables over into the basket.
My kitchen test: Hasselback root vegetables
I have put these root vegetables through my Cosori Dual Blaze several times, and 180 °C is the temperature that gives the best balance between a crisp edge and a soft middle. From the moment I take the root vegetables out until they are standing on the table, it takes 55 minutes in all: 25 minutes to scrub, slice and stir the butter mixture, and 30 minutes in the air fryer.
For the last 10 minutes I turn the temperature up to 200 °C, and that is the step that makes the difference. That is where the fans open out and turn crisp at the edges instead of just tender. I brush with butter twice — once before the root vegetables go into the basket, and once again when I turn the heat up, so the garlic and herbs do not burn along the way.
Place the root vegetable between two chopsticks before you slice. Then the knife stops by itself, and you never cut all the way through.
Tips and tricks from the author: Morten Jensen
The typical mistakes and how to avoid them
The first mistake is to choose root vegetables that are thick at one end and pointed at the other. A carrot that measures three centimetres at the top and half a centimetre at the bottom will never be done at the same time — the tip burns while the top is still raw. Choose root vegetables of an even thickness, or halve the thick end lengthways, so it sits flat in the basket. The second mistake is to add the chopped garlic and the finely chopped herbs from the start; at 180 °C for half an hour chopped garlic turns bitter and black. Use whole cloves with the skin on, and save the finely chopped herbs for the last brushing. The third mistake is an overfilled basket. The root vegetables need to sit in a single layer with air between them, or they steam each other tender instead of turning crisp — better to run two batches than one packed basket.
How to serve Hasselback root vegetables
The root vegetables are a side dish, but they hold their own in the middle of the table. These are the combinations I keep coming back to:
- With a joint of meat — roast beef, veal fillet or pork with crisp crackling
- With chicken or turkey, where the butter and thyme come back in the juices
- With a dollop of crème fraîche stirred with grated lemon zest and parsley
- As a vegetarian main course with lentils, feta and toasted seeds
- At Christmas dinner as a lighter alternative to roast potatoes
Storage and reheating
Leftovers keep for a couple of days in the fridge in an airtight container. Reheat them in the air fryer at 180 °C until the edges crackle again — the crispness comes back, which it never does in the microwave, where the fans turn soft and slightly chewy. You can slice the root vegetables the day before and leave them in cold water in the fridge; just pat them thoroughly dry before the butter goes on, or the water steams instead of browning.
Hasselback root vegetables are one of those side dishes that lift a perfectly ordinary dinner into something the guests ask about. The knife work is the whole secret — the air fryer looks after the rest itself.
Frequently asked questions
Carrots, parsnip, parsley root and beetroot all work well. Choose ones of an even thickness, around three centimetres in diameter, so the cuts come out even and the root vegetables are done at the same time. Beetroot stains, so give it its own corner of the basket.
Reckon on 55 minutes in all: about 25 minutes for preparation and knife work and 30 minutes in the air fryer at 180 °C. For the last 10 minutes you turn the heat up to 200 °C, so the fans open out and turn crisp at the edges.
No, that is not necessary. Scrub them thoroughly under running water with a vegetable brush, so the skin stays on. It holds the fan together during baking and turns crisp at the edges — if you peel them, the thin cuts become more fragile.
Recipe
Hasselback root vegetables in the Air Fryer
Cooking Guide
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Shopping list
Ingredients
Root vegetables
- 400 g small potatoes (Scrubbed, skin left on)
- 300 g parsnips (Peeled)
- 300 g thick carrots (Peeled)
- 250 g small beetroot (Peeled)
Herb butter
- 75 g butter (Melted)
- 2 tbsp olive oil
- 3 clove garlic (Finely chopped)
- 2 tsp fresh rosemary (Finely chopped)
- 2 tsp fresh thyme (Leaves picked from the stalks)
- 1 tsp salt
- 0.5 tsp black pepper (Freshly ground)
To serve
- 2 tbsp fresh parsley (Roughly chopped)
- 1 tsp flaky sea salt
How to make it
Preparation
- Scrub 400 g small potatoes clean under cold water, and leave the skin on. Peel 300 g parsnips, 300 g thick carrots and 250 g small beetroot, and pat all the root vegetables completely dry.
- Place one root vegetable at a time between the handles of two tablespoons on the cutting board, and slice it into 3-4 mm slices all the way down. The spoons stop the knife, so the root vegetable stays joined at the base and fans out. If a root vegetable is thicker than 5 cm, halve it lengthways first, so the fans bake through.
- Melt 75 g butter, and stir it together with 2 tbsp olive oil, 3 clove garlic, 2 tsp fresh rosemary, 2 tsp fresh thyme, 1 tsp salt and 0.5 tsp black pepper in a bowl.
- Brush the root vegetables with two thirds of the herb butter, and work the brush down between the slices, so the butter and garlic end up inside the cuts and not just on top.
Cooking in the air fryer
- Preheat the air fryer to 180 °C fan.
- Place the root vegetables in the basket in a single layer with the cut side facing up and air between them, and bake them at 180 °C for 20 minutes. Keep the beetroot together at one end of the basket — it stains the pale root vegetables.
- Brush with the rest of the herb butter, swap the root vegetables around so the outer ones move into the middle, and carry on baking for 10 minutes at 200 °C, until the fans are crisp at the edges and a knife slides easily into the middle.
Serving
- Let the root vegetables rest for 2 minutes, and sprinkle them with 2 tbsp fresh parsley and 1 tsp flaky sea salt just before serving.
Our notes for the recipe
Place the root vegetable between the handles of two tablespoons when you slice it — the knife stops by itself, and you don’t cut all the way through. Slices of 3-4 mm are right: thinner slices burn at the edges, thicker ones never fan out. How to make them extra crispy:
Give them an extra brushing after the first 20 minutes, and raise the temperature to 200 °C for the last third of the time. The root vegetables need to sit in a single layer with air around them — a packed basket steams them instead of baking them crisp. Variation:
Swap the beetroot for parsley root or celeriac if you want to avoid the red colour bleeding onto the other root vegetables. 2 tbsp grated Parmesan stirred into the herb butter for the last brushing gives a crisp cheese crust. Serving suggestion:
Serve as a side dish with roast chicken, roast veal or a good steak. A dollop of crème fraîche stirred with grated lemon zest goes well with the garlicky butter. Portion size:
If your air fryer is smaller, you can make the dish in two batches and heat everything through for 3 minutes at the end.
Your notes for the recipe
Nutrition per serving (Guideline)
Important about shelf life and nutrition
Nutrition per serving (guideline): Calculations are based on data from the United States Department of Agriculture (USDA). Shelf life (guideline): Shelf life data is provided, as far as possible, by public institutions, including national food authorities. Our information is therefore only indicative, and it is your responsibility to obtain and calculate accurate information about shelf life and nutrition for all recipes on airfryerkogebogen.dk
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