Step 1

Whisk together the egg, yolk, lemon juice and 3 tablespoons iced water. Leave in fridge until needed.

Step 2

Sift flour, salt and icing sugar in large bowl. Rub in the butter using fingertips until the mix is crumbly and rough.

Step 3

Make a well in the centre, add egg mixture and use a round bladed knife to bring the mix together until it is doughlike.

Step 4

Turn onto a floured surface and knead gently until smooth.

Step 5

Wrap in clingfilm, chill for at least ½ hour.

Step 6

Roll to desired sie and bake pastry at 200C.