Note: To prepare orange powder, use a microplane to zest 3 oranges, reserving zest on a parchment-lined baking sheet. Place zest in a cool area to dry for a day or two. Using a mortar and pestle, ...

There is no real reason why you shouldn't use duck eggs rather than hens' eggs. They are much richer in flavour and somewhat larger. Problems arise only with recipes that need very accurate amounts; ...