What is knitted muesli?

Answer 1

There is actually no such thing.

Muesli became popular in the 1960s mostly adapting the original recipe and substituting milk as the soaking liquid rather than the original water and lemon juice (or Orange Juice). Originally it was tied in with the vegetarian movement and in the 1970s with the hippy movement in the UK.

The phrase "knit their own muesli" was originally part of a derogatory description - often associated with the British Liberal party who conference attendees were characterized as "long haired, bearded, sweater and sandal wearers who knit their own muesli".

Jeremy Paxman in his book "The Political Animal" describes the Liberal Party conferences of the era as "a place to wonder whimsically about what would happen if they ruled the world and everybody knitted their own muesli".