I remember these - late '70s if I recall. Didn't the wrapper have an image of fruit trees with yellow sun rays radiating out of the middle? I'll take your word that it was Cadbury's - I only remember seeing these in the Co-op so kinda figured that it might have been a short-term offering from a smaller manufacturer. But glad to find someone else who remembers it!
Wow!!!!
But I think there was an earlier version of the wrapper, still with the sun but actual trees and a ploughed field.
It's Amazin what raisins can do!
Full of goodness and it's all for you!
It's got two kinds of chocolate
And caramel too
And it's got raisins and they're good for you
Oh! It's Amazin what raisins can dooooo!