Janet Baraclough writes
The message
from "Rupert \(W.Yorkshire\)" contains these words:

I have a plant that has ferny foliage and a cow parsley type pink flower.
It is now seeding and the seeds taste of aniseed. This thing forms a large
evergreen clump even during frosts and springs to life early in the year
(spring)
I have always thought this was Chervil but someone has told me that
chervil
is an annual and does not overwinter.
Could it be some other culinary herb?

It sounds very like sweet cecily except for the pink flowers. Sweet
cecily I've grown is always white flowered.

Sweet Cicely: Flowers white, but just in case: Downy, 1m, no lower
braacts, ie no linear 'leaf' where all the stems of the tiny umbels join
to be the main umbel.Leaves 2-4 pinnate ie the l+eaflets have leaflets,
which may in turn have leaflets, have leaflets. Leaves have pale flecks.
Fruits 2cm long and ribbed, dark shiny brown.

I'd be wary of tasting
those seeds until you ID it since some umbellifers are very poisonous.

Could it be pink cow parsley? There is a form of it sold for garden use.

Cow parsley: Downy, 1m, stems hollow, often becoming purple. No lower
bracts. Leaves 3-pinnate, Fruits smooth, long, broader at the base.
--
Kay