Name: New potato, spring onion & Montgomery cheddar quiche
Cook time: 1 h 15 min
Total time: 1 h 35 min
Yield: 10
Cuisine: English
Ingredients: 225g plain flour plus extra for dusting; 140g cold butter diced; 1 tsp icing sugar; 1 egg yolk; 250g new potatoes peeled, cooked and halved, or quartered if very large; 2 bunches spring onions sliced; 250g Montgomery cheddar diced; 5 eggs; 100ml milk; 200ml double cream

New potato, spring onion & Montgomery cheddar quiche

For the pastry

225g plain flour
plus extra for dusting
140g cold butter
diced
1 tsp icing sugar
1 egg yolk

For the filling

250g new potatoes
peeled, cooked and halved, or quartered if very large
2 bunches spring onions
sliced
250g Montgomery cheddar
diced
5 eggs
100ml milk
200ml double cream

Method

step 1
Sift the flour and a pinch of salt into a large bowl. Add the butter and rub in until it resembles breadcrumbs. Stir in the icing sugar, egg yolk and 3 tbsp cold water, then quickly bring together to form a firm dough. Wrap well in cling film and allow to rest for 20 mins in the fridge.
step 2
Heat oven to 200C/180C fan/gas 6. Roll out the pastry on a lightly floured surface and line a deep 23cm tart tin. Cover with baking parchment and fill with baking beans. Cook for 20 mins, then remove the paper and beans and cook for 5-10 mins more until the tart case is pale and sandy in texture (see p14 for tips on making and baking pastry).
step 3
Remove and turn the oven down to 160C/140C fan/gas 2. Spread the base of the tart with the potatoes, onions and cheddar. Whisk together the eggs, milk and cream, then season. Pour into the tart case and cook for 40-45 mins or until just set. Remove, cool on a wire rack then serve.