Step 1

Preheat the oven to 200°C / fan 180°C / 392°F / gas mark 6.

Step 2

Heat the oil in a large frying pan.

Step 3

Gently fry the onions and thyme until softened and translucent, which takes around 5 minutes.

Step 4

Remove from heat.

Step 5

Place the first layer of potatoes in a large ovenproof baking dish.

Step 6

Sprinkle over a third of the onions, then add another potato layer.

Step 7

Repeat until all onions and potatoes have been used up.

Step 8

Pour over the stock and bake for 50-60 minutes or until the potatoes are cooked and golden brown on top.

Step 9

Serve immediately with the dish of your choice. Enjoy!