Cheesy potato and onion slice

Prep: 30 mins
Cook: 45 mins
Cheesy potato and onion slice
Great savoury buffet recipe for guests to help themselves.

600g baking potatoes, peeled and chopped into chunks

300g mature cheddar, 200g grated, 100g cubed

Pinch cayenne pepper

Large bunch spring onions, finely sliced

1 egg, beaten

500g all-butter puff pastry

Caramelised red onions, to serve

Preheat the oven to 220°C / 425°F / Gas mark 7.

Line a baking tray with greaseproof paper and set aside.

Boil the potatoes for 15 minutes until tender, then drain well and smash a little with a fork. Cool slightly.

Mix the cheese, cayenne and onions with the smashed potatoes and stir to make the filling.

Roll out the pastry to a rectangle about 25 x 35cm.

Gently lift the pastry onto the baking sheet and brush all over with beaten egg.

Press the cheese mix along one of the long sides of the pastry, leaving 2cm pastry free on one side and half of the pastry empty on the other side.

Fold the pastry over the filling and press the edges together, before trimming with a knife and sealing well by pressing the edges with a fork.

Brush with egg and bake for 30 minutes.

Cool, then slice and serve with caramelised red onions.


Preparation Time
30 minutes

Cooking Time
45 minutes

Main ingredients
Dairy, Flour, Eggs, Cheese, Vegetables

Recipe Type
Party Food, Entertaining, Vegetarian

Special Info

Level of Difficulty

This can be made a day in advance.

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