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Potato and celeriac gratin

Layers of potato and celeriac in a creamy cheese sauce is the perfect side to any meal. Particularly delicious aside a roast dinner, this potato gratin is so simple to make
Serves: 4
Prep time: 15 mins
Cooking time: 2 hrs
Total time: 2 hrs
Skill level: Easy peasy
Costs: Cheap as chips

 

Ingredients

 

    • 500ml pot crème fraîche

 

    • 100ml (3½fl oz) milk

 

    • 3 cloves garlic, sliced

 

    • A few sprigs of thyme

 

    • 1kg (2¼lb) potatoes

 

    • 1 small-med celeriac

 

    • Salt and ground black pepper

 

    • 60g (2oz) ready-grated Gruyère

 

You will also need:

    • Shallow ovenproof dish (about 1.7 litre/2¾ pint), buttered

 

 

Method

 

 

    1. Set oven to 190°C/375°FGas Mark 5. Mix the crème fraîche, milk, garlic and thyme in a pan. Heat slowly until it almost comes to the boil. Set aside for 15 mins.

 

    1. Peel and thinly slice potatoes and peel and coarsely grate celeriac. Their combined weight should be 1.4kg (nearly 3lb) of veg.

 

    1. Put a third of the potatoes in the dish. Spread half the celeriac on top and season well. Spoon in some of the creamy mixture with the thyme (stalks removed). Repeat adding more potatoes, the rest of the celeriac, potatoes and creamy mixture.

 

    1. Scatter cheese on top. Put dish on a baking tray, cover with paper-lined foil and bake for 1¼-1½ hours. Remove foil and bake for another 20-30 mins.

 

 

Nutritional information per portion

 

 

 

This nutritional information is only a guide and is based on 2,000 calories per day. For more information on eating a healthy diet, please visit the Food Standards Agency website.

Guideline Daily Amount for 2,000 calories per day are: 70g fat, 20g saturated fat, 90g sugar, 6g salt.