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Roasted fennel turns sweet, jammy, and caramelized in a hot oven: nothing like its sharp raw bite! Here’s my roasting method, plus the best ways to serve it.

Roasted fennel
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If you haven’t tried the taste treat that is roasted fennel, stop right now and make yourself a pan! Raw fennel has a crunch and black licorice flavor, making it perfect for salads (like this one). But its roasted self is something different altogether.

What does roasted fennel taste like? Its flavor becomes sweet and caramelized, almost like roasted onions but even more irresistible! Baked fennel makes an easy and elegant side dish, especially for a Mediterranean or Italian-style meal. Here’s how to make it, and what I like to pair it with!

5 Star Reader Review

⭐⭐⭐⭐⭐ “This was excellent! Made one fennel bulb to have with dinner tonight, but my husband and I ate it all off the baking sheet as soon as it came out of the oven. So we made another and ate that one too! I only spritzed with a little EVOO and salt, but it was still delish! Thanks for the yummy, easy recipe.” -Sandy

Ingredients You’ll Need

One reason this recipe stays in my rotation: it needs exactly four things.

  • Fennel bulbs: Fennel is a member of the carrot family, though it looks like an onion with celery stalks and dill fronds on top! To find it, look in the produce section near the leafy greens. Squeeze the bulb: it should feel dense and heavy. Save those wispy fronds on top: they’re basically a free garnish!
  • Olive oil: Extra virgin olive oil is my go-to oil for roasting.
  • Lemon juice: Added after roasting: it brightens up the caramelized sweetness of the fennel.

How To Roast Fennel Step By Step

Alex and I started cooking with fennel in some of our Mediterranean style dishes years ago. I found that the flavor adds a beautifully unique element to soups and salads, and it’s great on its own as a side dish. Here are the basic steps to roasted fennel (or go to the recipe below):

  1. Chop into wedges. Cut off the large top, and the root end. Remove any very tough outer layers (you may need to remove several). Cut the bulb in half and chop it into wedges.
  2. Mix with olive oil and kosher salt. Then spread the slices onto a parchment lined baking sheet.
  3. Bake for 20 to 25 minutes at 450 degrees. You’ll want very high heat for fennel! This gets it perfectly caramelized and browned on the outside, and tender on the inside. (You’ll see the same technique with our roasted broccoli, roasted eggplant, roasted cauliflower, and more.)
  4. Spritz with lemon juice and serve. Adding the tang of lemon before serving brightens the flavor.
Fresh fennel bulb and fronds

How To Cut Fennel

Here’s the basic method of how to cut fennel (see the video instructions):

  1. Using a large chef’s knife, cut off the top of the fennel, which consists of stalks and feathery fronds. (You can use the fronds as a garnish if you’d like.)
  2. Cut off the root end of the fennel.
  3. Remove any tough outer layers of the fennel and discard them. This is important because they are much too tough to eat!
  4. Slice down the center of the fennel bulb. For this recipe, you’ll then cut it into 1-inch wide wedges.

Variations To Try

The basic version is perfect as is, but it takes to additions beautifully:

  • Garlic and herbs. Try adding smashed garlic cloves and sprigs of thyme or rosemary, added for the last 10 minutes.
  • Parmesan. Grated it in the final 5 minutes so it melts without burning.
  • Orange instead of lemon. Use orange juice and zest for a stronger citrus flavor.
  • Roast it with friends. Try it alongside Roasted Carrots and Onions.

What To Serve With Roasted Fennel

Roasted fennel sounds fancy, but as you can see it’s just as easy as roasting any other vegetable. Because fennel is a little more rare in American cooking, it’s a fun surprise for dinner parties or just to mix up weeknight cooking. Here are a few ways we’d serve it:

Roasted fennel

More Fennel Recipes To Try

There are lots more ways to use fennel! Here are some fennel recipes to try:

Dietary Notes

This roasted fennel recipe is vegetarian, vegan, plant based, dairy-free and gluten-free.

Frequently Asked Questions

What temperature should I roast fennel at?

450°F. High heat caramelizes the outside before the inside becomes mushy.

What does roasted fennel taste like?

High heat makes the sugars caramelize, and the licorice notes of raw fennel mellow into sweetness. The texture becomes silky like roasted onions.

Can you roast fennel stalks and fronds?

Save the stalks for making vegetable stock. The fronds burn at 450°F: use them raw as a garnish instead.

Can you roast fennel with other vegetables?

Yes, as long as they cook at a similar rate. Onions, carrots, potatoes, and bell peppers all work. Add quick-cooking vegetables like zucchini partway through.

Can you make roasted fennel in an air fryer?

Cook at 400°F for 12 to 15 minutes, shaking the basket halfway. You’ll get more browning and less of the jammy interior.

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Perfect Roasted Fennel

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 3 reviews

Welcome to the surprise that is roasted fennel! Baking it in a hot oven makes it sweet and caramelized: nothing like its raw flavor. 

  • Author: Sonja Overhiser
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Total Time: 30 minutes
  • Yield: 4 1x
  • Category: Side Dish
  • Method: Roasted
  • Cuisine: Italian
  • Diet: Dairy-Free, Gluten-Free, Vegan, Vegetarian

Ingredients

Scale
  • 4 large fennel bulbs
  • 2 tablespoons olive oil
  • ¾ teaspoon kosher salt (use less for small fennel bulbs)
  • 2 lemon wedges

Instructions

  1. Preheat an oven to 450 degrees Fahrenheit.
  2. Cut the fennel into wedges. Remove the top stalks, bottom root, and tough, thick outer layers as shown in the video (you may need to remove a few outer layers, which is ok). Then cut the remaining bulb in half and then into about 1 inch wedges.
  3. In a medium bowl, mix the fennel with the olive oil and kosher salt. Place it in a single layer on a baking sheet lined with parchment paper.
  4. Roast for 20 to 25 minutes, until browned and very tender (no need to stir).
  5. Remove from the oven and gently toss with the juice of two lemon wedges. Taste and adjust salt or lemon as desired. Serve immediately. Leftovers can be refrigerated for several days and reheated in a 350 degree oven until warmed through.

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About the authors

A Couple Cooks

Recipes by Alex & Sonja

We’re Alex & Sonja Overhiser: cookbook authors, busy parents, & a real life couple who cooks together! We started the A Couple Cooks food blog in 2010 to share simple, seasonal recipes, healthy meal planning tips, and the joy of cooking. All recipes are written & photographed by us (and tested on our two kids!).

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3 Comments

  1. Emily Young says:

    Not many people love fennel the way I do. Onion is a huge trigger for most people with IBS so I began playing with fennel as a substitute for the brightness but also for the bulk it adds to recipes. Chili, soup, meatloaves (seriously). Fennel is such an underutilized vegetable that no one can tell what is different but say that my recipes feel lighter. I credit the fennel. Thank you for another way to use it.

  2. Aura Kraft says:

    As a single person I love reading your recipes….
    They are easy to make with ingredients I have on hand
    or use your subsitutions.
    Thank you for for making life easier and more delicious !

  3. Sandy M says:

    This was excellent! Made one fennel bulb to have with dinner tonight, but my husband and I ate it all off the baking sheet as soon as it came out of the oven. So we made another and ate that one too! I only spritzed with a little EVOO and salt, but it was still delish! Thanks for the yummy, easy recipe.