- 1¼kg small waxy potato, such as Charlotte or Anya
The world's favourite root vegetable, the potato comes in innumerable varieties. A member of…
- 2 tbsp olive oil
Probably the most widely-used oil in cooking, olive oil is pressed from fresh olives. It's…
- 3 large onions, finely sliced
Onions are endlessly versatile and an essential ingredient in countless recipes. Native to Asia…
- 4 sprigs thyme, chopped
This popular herb grows in Europe, especially the Mediterranean, and is a member of the mint…
- 85g melted butter
Butter is a dairy product made from separating whole milk or cream into fat and…
Heat oven to 160C/fan 140C/gas 3. Slice the potatoes into rounds the thickness of a £1 coin. Heat the oil in a large saucepan and add the onions, season with a little salt, lots of pepper and the thyme. Cook gently for about 15 mins until softened.
Generously butter a large roasting tin and arrange a layer of potatoes over the base, overlapping each slice with a sprinkling of onions. Drizzle with a little of the melted butter and season. Continue layering, drizzling with butter, sprinkling with onions and seasoning until all the potatoes have been used, finishing with a top layer of potatoes. Cook in the top of the oven for 1 hr – the potatoes should be meltingly soft and the top golden and crusty.