Sift the flour and salt into a bowl and cut in the butter until it looks like breadcrumbs. Add sugar and almonds. Stir in the yolks and enough water to make a stiff dough. Knead lightly on a floured surface until smooth. Wrap in foil an chill for at least for half and hour.
Roll out the pastry on a lightly floured surface and line a greased 9 in. flan dish. Bake the crust unfilled for 10 minutes in a hot oven 400ºF. Allow to cool.