This isn’t fancy restaurant food.
Delia Smith’s Boulangère Potatoes are pure, timeless comfort.
Golden crisp on top. Soft and tender underneath.
The kind of dish you slide onto the table and everyone goes straight for it.
Simple. Honest. Completely irresistible.
Why These Boulangère Potatoes Work So Well
You’ve got those thin layers of potato soaking up rich veggie stock.
Garlic and thyme sneaking flavor into every bite.
A crisp cheesy top that shatters under your fork.
Nothing complicated. Just proper flavors cooked slow and right.
Ingredients (And Why They Matter)
White potatoes: Good starchy ones like Maris Piper or Russet — soak up stock and stay fluffy.
Butter: For flavor and for helping everything turn golden.
Onion and garlic: Sweetness and savoriness building the base.
Fresh thyme: Little sprigs of woodsy, herby magic.
Vegetable stock: Adds depth — better than just water.
Salt and pepper: Don’t be shy — potatoes need seasoning.
Parmesan: Sharp, salty top layer that crisps up beautifully.
How to Make It
1. Get Set Up
Heat oven to 180°C (350°F).
Lightly butter a 20x30cm baking dish.
Peel the potatoes. Slice them thin — about 4mm.
(Use a sharp knife or a food processor if you’ve got one.)
2. Sauté the Aromatics
Melt the butter in a big pan over medium heat.
Toss in sliced onion, chopped garlic, and the thyme leaves.
Cook slowly for 8–10 minutes, until soft and sweet but not browned.
Your kitchen will already smell like something good’s about to happen.
3. Layer It Up
Layer a third of the potatoes in the bottom of the dish.
Season with salt and pepper.
Spoon over some of the onion mixture.
Repeat: Potatoes, seasoning, onions — until everything’s used up.
End with a neat layer of potatoes.
Pour the vegetable stock over the whole thing.
4. Finish and Bake
Scatter the grated Parmesan all over the top.
Dot with a little extra butter if you’re feeling generous.
Bake uncovered for 1 hour — until the top is golden, and a knife slips through the layers easily.
Let it stand 5 minutes before serving so it firms up slightly.
You’re gonna want to eat it straight out of the dish, honestly.
Common Mistakes and How to Dodge Them
| What Went Wrong | Why It Happens | How to Fix It |
|---|---|---|
| Top not crispy | Not enough butter or cheese | Scatter more Parmesan, dot with butter |
| Potatoes still firm | Oven too cool or rushed | Make sure it bakes long enough at 180°C |
| Flavor too flat | Under-seasoned | Salt and pepper every layer properly |
What to Serve With Boulangère Potatoes
- Roast chicken or beef with plenty of gravy
- Slow-cooked lamb shoulder
- Grilled salmon or seabass
- Big fresh green salads
- Roasted seasonal veg — carrots, parsnips, leeks
Basically, anything that needs a warm, starchy hug on the plate.
How to Store and Reheat
Fridge: Cool completely. Store covered for 3–4 days.
Freezer: Freeze portions airtight for up to 3 months.
To reheat:
- Oven: 180°C, cover with foil, heat for 20–25 minutes.
- Microwave: Smaller portions on medium power, stirring halfway.
- Air fryer: 5–7 minutes at 350°F for a quick crispy refresh.
A Quick Bite of History
Boulangère potatoes come from old French village bakeries.
Families would layer up potatoes, onions, stock — and leave the dish in the baker’s cooling bread oven all day.
Slow cooking, deep flavor, no fuss.
Delia’s version keeps all that good old tradition — with just a little extra Parmesan for good measure.
More Delia Smith Recipe
Delia Smith Boulangere Potatoes
Description
Delia Smith’s Boulangère Potatoes are golden, savory layers of thin-sliced potato and onion, baked slowly with thyme and stock until tender underneath and crisp on top.
Pure classic comfort food.
Ingredients
Instructions
- Preheat oven to 180°C. Butter a 20x30cm dish.
- Slice potatoes thin (about 4mm).
- Sauté onion, garlic, thyme in butter till soft.
- Layer potatoes, seasoning, onion mix. Repeat, ending with potatoes.
- Pour stock over. Scatter Parmesan on top. Dot with butter.
- Bake 1 hour until golden and tender.
- Let rest 5 minutes before serving.
Notes
- Slice potatoes as evenly as you can for even cooking.
- Be generous with seasoning at every layer.
- Don’t skip the rest time after baking — it settles the layers nicely.