This post contains affiliate links.
Most guides show you one way to cut fennel. This one shows you four, because a bulb headed for a salad, a sheet pan, a soup pot or a blender should not be cut the same way. Fennel is crunchy like celery (they’re cousins) with a fresh, sweet flavor that leans black licorice, or my favorite movie candy, Good & Plenty. It shows up in Mediterranean and Italian cooking constantly, and once you know the four cuts, it’ll show up in your kitchen too.
I go through about a bulb a week once fennel season hits. A quarter of it goes into my Apple Celery Smoothie, half gets shaved into a Strawberry Arugula Salad or tossed over a Lemon Arugula Salad, and the rest roasts next to dinner. If the bulb is bigger than your plans, the storage section below keeps it crisp all week.
Table of Contents
Why This Method Works
- Cut for the recipe, not the rulebook. Shaved for salads, wedges for roasting, diced for soup, chunks for the blender. Each one is a different cut, and the blender cut is the one most guides skip.
- The core rule. Cut the core out when fennel is going raw or into a blender. Leave it in when you roast, so the wedges hold together.
- Nothing hits the trash. The stalks go into broth. The fronds work like an herb. The bulb is dinner.
- Storage with real numbers. Whole bulbs keep 7 to 10 days. Cut fennel keeps up to 5. Frozen, up to 6 months.
- Light and crunchy. One cup of sliced raw fennel has about 27 calories, 1 gram of protein, 3 grams of fiber and 3 grams of natural sugar, with no added sugar. It’s mostly water and crunch.
What You’ll Need
A sharp knife and a sturdy cutting board. That’s really it. I use a paring knife in these photos because it’s what I grab most, and it’s the right tool for coring. A chef’s knife or santoku makes the first big cuts faster. Sharp matters more than size. A mandoline is optional for paper-thin salad slices, and if you like to prep ahead, a lidded wide-mouth jar keeps cut fennel crisp in the fridge.
Getting to Know Fennel
A fennel bulb has four parts. You’ll use three of them.
- Bulb: the pale, layered base. This is what recipes mean when they say “fennel.” Crisp and sweet raw, soft and mellow cooked.
- Core: the dense wedge at the bottom of the bulb. Chewy raw, tender cooked.
- Stalks: fibrous, like celery that grew up too fast. Not fun to eat as-is, but they make excellent veggie broth.
- Fronds: the feathery green tops. Soft, a little like dill, and the best free herb in your fridge.
Picking one: choose a bulb that feels heavy for its size, with tight layers and no bruises. Fennel peaks from late fall through early spring, but you can find it year-round. If the stalks are still attached, grab that one. It keeps longer.
How to Cut Fennel
Want to watch it first? The video takes about a minute.
Prefer to read? Here’s the written version. If your fennel came without stalks, skip to step 2.
Step 1: Trim. Cut the stalks off right where they meet the bulb. Pull the fronds off the stalks and set them aside. Drop the stalks in a freezer bag for your next batch of broth. Slice a thin sliver off the root end, and if the outer layer looks bruised or feels rubbery, peel it away.
Step 2: Halve. Stand the bulb on its trimmed root end and cut straight down through the root, top to bottom. Cutting through the root keeps the layers attached so the halves don’t fall apart. Rinse the cut sides if you see any grit hiding between the layers.
Step 3: Core. You’ll see a dense, slightly paler wedge at the base of each half. Cut a V on either side of it and pop it out. Only do this when the fennel is going raw or into the blender. If you’re roasting, leave it in. The core softens in the oven and holds the wedges together.
Step 4: Slice or dice. Lay each half cut side down and slice. Thin for salad, thicker for the pan. To dice, turn the slices and cut crosswise. It cuts like an onion, only drier, and it won’t make you cry.
Four Cuts for Four Uses
- For salads: shave it. Halve and core, then lay each half flat and slice across it as thin as you can, or run it over a mandoline. Toss with a squeeze of lemon right away. That’s the cut in my Strawberry Arugula Salad, which uses half a bulb.
- For roasting: wedges, core in. Halve the bulb, then cut each half into three or four wedges, slicing through the core so it holds each wedge together. Roast cut side down at 400°F until the edges turn golden, about 25 minutes. Raw, my teenagers push fennel to the edge of the plate. Roasted like this, it disappears.
- For soup: dice it. Halve and core, then slice each half lengthwise, leaving the root end connected. Turn it and cut crosswise into a small dice. It melts into the pot.
- For smoothies: chunk it. Halve, core and rough-chop into 1-inch pieces. A quarter bulb is plenty for one 16-ounce smoothie. Fennel is fibrous, so it blends smoothest after the greens and liquid are already going, or with a high-speed blender running a few seconds longer. Start with my Apple Celery Smoothie.
Substitutions and Variations
- No mandoline: a sharp knife and a little patience get you close. The slicing disc on a food processor works too.
- No fennel for a recipe: celery brings the crunch, and a pinch of crushed fennel seed brings the flavor. Not identical, but close enough for a salad or soup.
- Not a licorice fan: roast it or sauté it. Heat mellows the anise flavor into something sweet and mild. Even the skeptics at my table come around.
- Baby fennel: skip the coring. The core is tender enough to eat.
- Fronds: chop them like dill and scatter over salads, soups and roasted veggies, or blend a few into your smoothie.
How to Store Fennel
- Whole bulbs: trim the stalks off first (they pull moisture out of the bulb), then store loosely bagged in the crisper drawer. 7 to 10 days.
- Cut fennel: an airtight container with a squeeze of lemon juice, or submerged in cold water in a lidded wide-mouth jar. Up to 5 days. Change the water every couple of days.
- Fronds: treat them like fresh herbs. Stems down in a jar of water in the fridge, or wrapped in a damp towel, for a few days.
- Stalks: freezer bag. Add them to your next pot of veggie broth.
- Freezing for soups and roasting: quarter the bulb, blanch in boiling water for 30 seconds to a minute, cool in ice water, pat dry and freeze. Up to 6 months. Frozen fennel loses its crunch, so skip it for salads.
- Freezing for smoothies: dice it raw, no blanching needed, and freeze in quarter-bulb portions in silicone freezer trays or straight into your meal prep smoothie packs. Texture doesn’t matter once it’s blended. Best within a few months.
NOVEMBER 9-13, 2026
Free 5-Day Soup Challenge
Celebrate this cozy season with us! For 5 days, we’re cooking up fall-inspired soup each day—packed with veggies, perfect for busy nights, and every bowl you make is a chance to win $750 in prizes!
How to Use Fennel
Raw fennel loves sweet things. Shave it thin with strawberries and orange, scatter it over a lemony arugula salad for crunch, or blend a quarter bulb into a green smoothie with apple and ginger. Roast the wedges next to whatever’s for dinner.
And here’s the part that surprises people: fennel seed, from the same plant, is the flavor you taste in a lot of Italian sausage and pizza. I mix the seeds into my pizza crust and slice the bulb thin as a topping.
More How-To Guides
Knowing how to prep something is the difference between buying it and walking past it. How to cut a mango, an avocado or a melon, and how to freeze spinach so half the bag stops going to waste, all live in my tutorials. If there’s a fruit or vegetable you’d like me to cover next, tell me in the comments.
Common Questions
The bulb is the part most recipes call for, and it’s delicious raw or cooked. The stalks are fibrous, so save them for broth. The soft, feathery fronds are edible and taste like mild dill, so use them like an herb. Only the tough core at the base of the bulb gets cut out, and only when you’re eating the fennel raw.
Only if you’re serving it raw or blending it. The core is dense and chewy when uncooked, so cut a small wedge out of each bulb half. If you’re roasting or braising fennel, leave the core in. It softens in the heat and holds the wedges together.
Trim the stalks, halve the bulb through the root, cut out the core, then lay each half flat and slice it as thin as you can. A mandoline makes paper-thin slices easy. Toss the slices with lemon juice right away to keep them crisp and pale.
Trim the stalks and root end, halve the bulb through the root, then cut each half into three or four wedges, slicing through the core so it holds each wedge together. Roast the wedges cut side down until the edges are golden.
Keep cut fennel in an airtight container with a squeeze of lemon juice, or submerge it in cold water in a lidded jar, and refrigerate. It stays crisp for up to 5 days. Whole bulbs keep 7 to 10 days in the crisper drawer with the stalks trimmed off.
Yes. For soups and roasting, quarter the bulb, blanch it in boiling water for about a minute, cool it in ice water, pat it dry and freeze for up to 6 months. Frozen fennel softens, so skip it for salads. For smoothies, freeze raw diced fennel in quarter-bulb portions. No blanching needed.
How to Cut Fennel
Jen HansardVideo
Ingredients
- 1 fennel fresh white bulb, with or without fronds
Instructions
- If the fennel has stalks and fronds attached, cut them off with a paring knife where they meet the bulb.
- Stand the bulb on its root end and cut it in half through the center of the narrower side.
- Cut along both sides of the core in each half and remove the wedge-shaped piece. A slightly discolored line shows where the core sits and meets the root end.
- Place each half cut side down and slice it as you would an onion. Leave the pieces in long strips or dice them further, depending on the recipe.
To Store:
- If you’re not using the fennel right away, squeeze fresh lemon juice over the cut pieces and store in an airtight container in the refrigerator.
Recipe Notes
- Buying Tip: Choose a firm, white bulb without brown spots.
- Knife Tip: If your bulb is large, use a chef’s knife instead of a paring knife.
- Storing: To store a whole bulb, submerge it in water with a squeeze of lemon juice in a covered container in the fridge.
- Fronds and Stalks: Use the fronds like fresh herbs; they taste mildly of licorice. The stalks can be cooked or blended into smoothies.
I’m new to the plant-based world and fennel is def scary. I love the taste it brings to your salad recipes and watching you cut it here. Thank you for this, Jen.
I hear you about the fennel, Susie. It’s not a supper common food in the US. There are so many tasty veggies to try. Hope you find a few more here at SGS.