Amelia Grace Celery rarely gets to be the star of a dish, usually relegated to a supporting role in stocks and soffritto, but blended into a soup on its own, it has a delicate, savoury character that genuinely deserves more attention.
This is a proper simple soup, the sort I make when I have a bag of celery that needs using up and want something warming without much fuss.
It blends down beautifully smooth, with a flavour that’s gentle rather than overpowering.
Why Celery’s Subtle Flavour Needs Careful Seasoning to Shine
Celery has a much milder, more delicate flavour than many other soup vegetables like onion or leek, which means this soup needs a slightly different approach to seasoning than a more robustly flavoured one.
Because celery doesn’t have the same depth and sweetness that carrots or leeks bring, careful, proper seasoning with salt and pepper becomes even more important here to bring out what flavour celery does have, rather than letting it taste bland or watery.
A good stock and a careful hand with seasoning at the end are really what elevate this soup from simply pleasant to properly delicious.
Ingredients for Delia Smith Celery Soup
- 25g unsalted butter
- 1 onion, chopped
- 1 whole head of celery, trimmed and chopped
- 1 potato, peeled and chopped
- 1 litre vegetable or chicken stock
- Salt and freshly ground black pepper
- A swirl of cream, to serve (optional)
- Celery leaves, to garnish (if available)
How to Make Delia Smith Celery Soup — Step by Step
Step 1 — Sweat the Onion
Melt the butter in a large pan over low heat. Add the onion and cook gently for 5–6 minutes, until soft but not coloured.
Step 2 — Add the Celery and Potato
Add the chopped celery and potato, stirring to coat in the butter, and cook for a further 5 minutes.
Step 3 — Add the Stock
Pour in the stock and bring to a simmer.
Step 4 — Simmer Until Tender
Cover and simmer gently for 20–25 minutes, until the vegetables are completely soft when pierced with a knife.
Step 5 — Blend Until Smooth
Remove from the heat and blend until completely smooth, using a stick blender or transferring in batches to a jug blender.
Step 6 — Season Carefully
Season generously with salt and pepper, tasting as you go, since celery’s delicate flavour needs proper seasoning to come through.
Step 7 — Serve
Ladle into bowls, finishing with a swirl of cream and a few celery leaves, if using.
My Top Tips for the Best Delia Smith Celery Soup
Season more generously than you might expect. Celery’s delicate flavour genuinely benefits from careful, proper seasoning to stop the finished soup tasting bland.
Keep the heat low while sweating the vegetables. You want them to soften gently rather than brown, preserving that delicate flavour.
Add a potato for extra body. It’s a small addition, but it gives the soup a lovely, silky thickness once blended.
Blend until properly smooth. A silky, lump-free texture is what makes this soup feel special, so take your time at this stage.
Use the leafy tops if your celery has them. They add a lovely, slightly peppery flavour and make a nice fresh garnish.
Serving Suggestions
Serve with warm crusty bread, or a swirl of cream on top for extra richness. A scattering of celery leaves or a few croutons add a nice finishing touch if you’re serving it for guests.
How to Store Delia Smith Celery Soup
In the fridge: Store in an airtight container for up to 3 days. Reheat gently on the hob, stirring occasionally.
At room temperature: Not suitable — cool and refrigerate promptly after cooking.
In the freezer: Freezes beautifully for up to 3 months. Defrost fully in the fridge before reheating gently on the hob.
Delia Smith Celery Soup Recipe
Ingredients
Method
- Melt butter and sweat the onion gently for 5–6 minutes.
- Add celery and potato, cooking for a further 5 minutes.
- Pour in the stock and bring to a simmer.
- Cover and simmer for 20–25 minutes until tender.
- Blend until completely smooth.
- Season generously with salt and pepper.
- Serve with a swirl of cream and celery leaves.
Notes
Frequently Asked Questions About Delia Smith Celery Soup
Why does my celery soup taste bland?
This is almost always down to under-seasoning, since celery has a naturally delicate flavour. Season more generously than you might for a stronger-flavoured soup, tasting as you go.
Can I make this soup without a potato?
Yes, though the potato gives a lovely silky body to the soup. Without it, the soup will still be delicious but slightly thinner.
Can I make this soup vegan?
Yes — use vegetable stock instead of chicken, swap the butter for a plant-based alternative or a splash of olive oil, and use a plant-based cream alternative or omit it entirely.
Can I add cheese to this soup?
Yes, a handful of grated mature cheddar or a crumbling of blue cheese stirred in at the end both work beautifully alongside celery’s mild flavour.
