Mary Berry Celeriac Puree Recipe

If you’ve never cooked with celeriac before, I get it, it looks like a potato had a rough week. But trust me, once you try Mary Berry’s celeriac puree, you’ll wonder why you ever settled for plain mashed potatoes. It’s silky, buttery, and just a little bit fancy without being fussy. My kind of side dish.

What Is Mary Berry’s Celeriac Puree?

Mary Berry’s celeriac puree is a velvety, buttered vegetable side dish made by cooking peeled celeriac until tender, then blending it with cream and butter into a smooth, luxurious mash. It’s the kind of recipe that makes it look like you spent hours in the kitchen, but you didn’t.

Celeriac (also called celery root) has a mild, earthy flavour with a subtle hint of celery. It pairs beautifully with roasted meats, game, or even a simple grilled fish. FYI, this is one of those sides that quietly steals the show at the dinner table.

Ingredients You’ll Need

Here’s what goes into a classic Mary Berry-style celeriac puree (serves 4):

• 1 large celeriac (about 800g), peeled and cut into chunks
• 30g unsalted butter
• 100ml double cream
• Salt and white pepper, to taste
• A squeeze of lemon juice (optional, but I always add it)

That’s it. No wild pantry raid required.

How to Make Mary Berry Celeriac Puree

Step 1: Peel and Prep the Celeriac

Peel the celeriac thoroughly and chop it into even chunks. This is the most important step because uneven pieces cook at different rates. Celeriac skin is thick and gnarly, so use a sturdy knife rather than a peeler. I learned this the hard way.

Drop the chunks into a bowl of cold water with a squeeze of lemon to stop them browning while you prep.

Step 2: Boil Until Tender

Place the celeriac in a pot of salted cold water and bring it to a boil. Cook for 15–20 minutes until completely tender when pierced with a knife. Don’t rush this; undercooked celeriac blends into a gluey mess, not a puree.

Drain thoroughly once done. Let it steam-dry for a minute or two in the pot; extra moisture is the enemy of a silky puree.

Step 3: Blend with Cream and Butter

Add the butter and warm double cream to the drained celeriac, then blend until completely smooth. A stick blender works perfectly here. So does a food processor. What doesn’t work? A potato masher, you’ll end up with lumps instead of that gorgeous, restaurant-style texture.

Season generously with salt and white pepper. Taste as you go.

Step 4: Adjust and Serve

Check the consistency and seasoning before serving; this is where the magic happens. If the puree feels too thick, add a splash more warm cream. Too thin? Return it briefly to a low heat and stir.

Serve immediately or keep warm over a bain-marie covered with cling film pressed directly onto the surface (stops a skin forming).

Tips for the Best Celeriac Puree

• Warm your cream before adding it. Cold cream can make the puree turn gluey.
• Don’t over-blend. IMO, 30–40 seconds in the blender is enough; over-processing can make it gummy.
• Season in layers. Salt the cooking water, then season again after blending.
• Add a pinch of nutmeg for a subtle warmth; Mary Berry herself often uses it.

What to Serve with Celeriac Puree

Honestly, the better question is, what doesn’t go with this? Here are my top pairings:

• Roast beef or venison — the earthiness of celeriac cuts through rich, gamey flavours beautifully
• Pan-seared duck breast — a classic combination
• Grilled salmon or sea bass — lighter and elegant
• Slow-roasted lamb shoulder — yes, absolutely yes

Frequently Asked Questions

Can I make celeriac puree ahead of time?
Yes! You can make celeriac puree up to 2 days ahead and reheat it gently on the hob with a splash of cream, stirring constantly. Store it covered in the fridge. It reheats brilliantly, which makes it a brilliant choice for dinner parties.

Can I freeze celeriac puree?
Celeriac puree can be frozen for up to 1 month, though the texture may change slightly after thawing. Reheat from frozen gently and add a little extra cream to bring it back to life.

Is celeriac puree healthier than mashed potato?
Celeriac is lower in carbohydrates and calories than potatoes, making it a popular choice for low-carb diets. It’s also high in vitamin K and fibre. So yes, it’s the smarter mash, basically.

Why is my celeriac puree grainy or lumpy?
The most common reason is undercooking the celeriac before blending. Make sure it’s completely soft. If a knife slides in with zero resistance, you’re good to go.

Final Thoughts

Mary Berry’s celeriac puree is one of those recipes that sounds impressive but takes almost no effort. It’s smooth, rich, and just different enough from regular mash to make people ask “what is that?” at the dinner table, and that’s exactly what you want. Give it a go this weekend. I promise it’ll earn a permanent spot in your side dish rotation.