Think tender potatoes, sweet onions, and lashings of butter — baked slowly until golden and crisp on the outside, soft and melting inside.
Rooted in the culinary traditions of South Wales, Teisen Nionod is both a side dish and a star in its own right — one of those quiet heroes that deserves far more fame.
Humble Ingredients, Hearty Results
This dish calls for just a few components:
Thinly sliced potatoes
Sliced onions
Butter (and lots of it!)
Salt and pepper
Sometimes a little stock or bacon fat for extra flavour
Layered and baked slowly, the flavours mingle and intensify, giving you crisp edges and creamy centres. It’s a dish that rewards patience and celebrates the beauty of Welsh produce.
Regional Twists
While Teisen Nionod is most commonly made in Glamorgan and surrounding counties, you’ll find a few variations:
Carmarthenshire: Adds a splash of chicken or vegetable stock for extra richness
Cardiganshire: Uses dripping or lard instead of butter for a deeper flavour
Modern takes: Add leeks, cheese (like Caerphilly or cheddar), or even mustard
Perfect Pairings
Teisen Nionod is a perfect partner to:
Roast lamb or pork
Faggots and onion gravy
Laverbread and bacon
Or simply served with buttered cabbage and a poached egg for a vegetarian supper
Recipe: Teisen Nionod (Welsh Onion Cake)
Ingredients:
4 large floury potatoes (e.g., Maris Piper or King Edward)
2 large onions, thinly sliced
75g unsalted butter, melted
Salt and freshly ground black pepper
Optional: 100ml stock or 50g grated Caerphilly cheese
Method:
Preheat the oven to 180°C (160°C fan) / 350°F / Gas Mark 4.
Peel the potatoes and slice them very thinly (a mandoline helps).
Grease a round baking dish and layer potatoes and onions alternately.
Season each layer with salt, pepper, and a drizzle of butter.
Pour over any remaining butter (and stock if using).
Cover with foil and bake for 45 minutes.
Uncover and bake a further 30 minutes until golden and crisp on top.
Rest for 5–10 minutes before serving in generous wedges.
A Taste of Hearth and Home
Teisen Nionod is proof that the most soul-satisfying dishes are often the simplest. It brings together the frugality of Welsh cooking and the indulgence of comfort food — a tray of golden warmth that belongs on every table.
Coming next: Welsh Griddle Bread — A Pan-Baked Heritage Loaf

