Ingredients: 1 tblsp cooking oil; 2 onions, finely chopped; 8oz (225g) puff pastry; English or Dijon mustard; 4oz (100g) smoked bacon, chopped; 4oz (100g) cheddar cheese, grated; sesame seeds, to garnish
- This slice makes great canapés, finger snacks or an accompaniment to soup.
- Most people buy ready-made puff pastry but if you want to make your own, here’s how. Melt 2oz (50g) butter, cool. Leave 5oz (150g) butter to soften. Sift 7oz (200g) plain flour and pinch of salt into a bowl. Make well in centre, pour in about 4 fl oz (120ml) cold water, a few drops lemon juice and the melt butter. Knead lightly, then leave to rest for 20 mins. On a floured board, roll pastry from 4 sides, leaving a lump in centre – dough should look like a crossroads. Sit remaining butter on the centre lump of the dough and fold over each pastry flap. Pat into a rectangle measuring about 6 x 12in (15 x 30cm), refrigerate for 10-15 mins. Roll pastry lengthways until double in length. Fold both ends into centre, then fold once more. This is called a double turn. Complete process a further 3 times. Always roll with folded edge on left and leave to rest for 20-30 mins in fridge before each turn. Leave pastry in fridge for a further 30 mins before using. This makes roughly 1 lb (450g) of pastry but you can freeze the excess.
- In a large frying pan, heat oil and fry onions for a few minutes until softened. Make sure onions do not brown. Allow to cool.
- Roll out puff pastry very thinly into a 12in (30cm) square. Cut square in half and on one half only, spread a little mustard, according to your taste. Then spread with the onions, bacon and cheese and cover with the remaining pastry half. Roll up pastry parcel like a Swiss roll, then leave to rest in fridge for 1-2 hours.
- Preheat oven to 220oC/425oF/Gas Mark 7. Remove roll from fridge, cut into ¾ in (18mm) slices, place on a greased baking sheet. Sprinkle with sesame seeds and bake for 12-15 mins until golden.