You can bake celery in the oven for about 15 to 25 minutes at 400°F (200°C), depending on how soft or crisp you want it.
If you’re wondering how long to bake celery, the answer really depends on whether you’re roasting it as a side dish, softening it for a casserole, or baking it into a gratin.
Celery is one of those underrated vegetables that transforms beautifully in the oven, going from crunchy and mild to tender and slightly sweet.
In this post, we’ll break down exactly how long to bake celery, the best temperatures to use, and a few tips so yours comes out perfectly every time.
Let’s get right into it.
How Long to Bake Celery: The Short Answer
When you bake celery, the timing depends mostly on the size of your pieces and the texture you’re after.
Here’s a quick guide so you know how long to bake celery before you even preheat the oven:
1. Small, Thinly Sliced Pieces: 10–15 Minutes
If you slice celery thin, it bakes fast.
At 400°F, thinly sliced celery will soften in about 10 to 15 minutes.
This is perfect when you’re baking celery to mix into stuffings, soups, or casseroles.
2. Standard Chunky Pieces: 15–25 Minutes
For classic roasted celery, cut the stalks into chunks about an inch or two long.
Bake them at 400°F for 15 to 25 minutes.
You’ll know they’re done when the edges start to brown and a fork slides in easily.
3. Whole Stalks or Large Spears: 25–35 Minutes
If you bake celery as whole stalks or thick spears, give them more time.
At 375°F to 400°F, whole stalks usually take 25 to 35 minutes.
They’ll come out tender with a lovely caramelized flavor.
4. Celery Baked in a Covered Dish: 30–40 Minutes
When celery is baked in a covered casserole or gratin, it steams as it bakes.
This means it takes longer, usually 30 to 40 minutes at 350°F to 375°F.
The cover traps moisture, so the celery gets soft without drying out.
What Temperature Should You Bake Celery At?
The temperature you choose changes both the texture and flavor of your baked celery.
Here’s how to pick the right one:
1. 400°F (200°C) for Roasted Celery
This is the sweet spot if you want roasted celery with browned edges.
The high heat caramelizes the natural sugars, giving you a deeper, nuttier taste.
Toss the celery in olive oil, salt, and pepper before it goes in.
2. 375°F (190°C) for Tender, Even Baking
If you want celery that’s soft all the way through without too much browning, 375°F works great.
This temperature is ideal when you’re baking celery to serve alongside a roast or mix into a warm salad.
3. 350°F (175°C) for Casseroles and Covered Dishes
Lower heat is better when celery is baked with other ingredients.
At 350°F, the celery softens gently and absorbs the flavors around it.
This is the go-to temperature for gratins, stuffings, and baked pasta dishes.
Tips for Baking Celery Perfectly Every Time
Knowing how long to bake celery is one thing, but a few small tricks make a big difference.
1. Dry the Celery Well Before Baking
Pat the stalks dry after washing.
Too much water on the surface means the celery steams instead of roasts.
Dry celery browns better and develops that rich roasted flavor.
2. Don’t Skip the Oil
A light coating of olive oil or avocado oil helps the celery bake evenly.
It also carries the seasonings and encourages that golden color.
3. Spread It in a Single Layer
Crowding the pan causes celery to steam and turn soggy.
Give each piece space so hot air can circulate around it.
4. Add Seasoning Before and After
Season the celery before baking with salt, pepper, garlic powder, or herbs.
Then add a little fresh lemon juice or flaky salt after baking to brighten it up.
5. Check Doneness with a Fork
The best way to know how long to bake celery is to test it.
When a fork pierces the thickest part easily, it’s done.
If it still feels firm, give it a few more minutes and check again.
6. Keep an Eye on the Edges
Celery can go from nicely browned to burnt quickly.
Check it around the 15-minute mark and adjust as needed.
So, How Long to Bake Celery?
You can bake celery for about 15 to 25 minutes at 400°F for chunky roasted pieces, or up to 35 minutes for whole stalks.
If it’s baked in a covered dish, expect 30 to 40 minutes at a lower temperature.
The exact time for how long to bake celery depends on the size of your pieces and how soft you want them.
Use the tips above, keep an eye on the oven, and you’ll get tender, flavorful celery every single time.