Fennel is often the underdog of the vegetable world, but the air fryer completely transforms it. High heat turns the crisp bulbs into tender, caramelized wedges, while the breadcrumb topping gets perfectly golden and crunchy. This isn’t just plain roasted fennel, though: it’s packed with a savory punch thanks to melting anchovies, zesty lemon, and a warm spice blend.
This recipe is the definition of low effort, high reward. It’s ready in a flash and adds a sophisticated touch to simple meals like grilled fish, roast chicken, or even a fluffy omelet. Even if you think you don’t like fennel, the caramelized sweetness and savory crumb might just change your mind.
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Air Fryer Fennel Gratin
Ingredients
Equipment
Method
- Trim the fennel and cut into wedges or thick slices.
- Place the fennel in a bowl and season with olive oil, salt, pepper, sweet paprika, and ground ginger.
- Add the anchovy fillets broken into pieces, the sliced chili pepper, and a generous handful of breadcrumbs.
- Grate the lemon zest over the mixture and combine until evenly coated.
- Transfer the fennel to the air fryer basket and cook at 356°F (180°C) for about 15 minutes, shaking halfway.
- Serve hot and garnish with fennel fronds and, if desired, more lemon zest.
- Store leftovers in an airtight container in the refrigerator for up to 1 day. Reheat in the air fryer before serving.

Chef’s tips
- The anchovy factor: don’t be afraid of the anchovies! They melt completely during cooking, leaving behind a rich, savory depth (umami) rather than a fishy taste. If you need a vegetarian version, swap them for a tablespoon of chopped capers or black olives.
- Extra crunch: for the crispiest texture, try using Panko breadcrumbs instead of regular fine breadcrumbs. They are lighter and crisp up beautifully in the air fryer.
- Cheesy upgrade: although this recipe is delicious as is, mixing 2 tablespoons of grated Parmesan cheese into the breadcrumbs before tossing creates an irresistible golden crust.
Since 2012, I’ve been sharing life through the things I love most — cooking, traveling, observing, and writing. I do it with the curiosity of someone who’s always learning, and the joy of sharing something real and heartfelt
