Cost information for the following is not included. Normally this is because the quantity or ingredient is unknown
a thick bechamel made with 40g (1 1/2 ounces) of flour,40g of butter, and 250ml (1 cup) milk, 3 eggs and an extra egg yolk
100 ml (scant half cup) of cream
50g (1/3 cup or 1.7 ounces) of grated Parmigiano-Reggiano nutmeg
salt and pepper
optional flour or fine breadcrumbs for lining the mould