Sorry artjak no chocolate involved, all savoury.
You're correct in that it's similar in construction to a swiss roll. Cooked parsnip puree, plus cream, spread over a cooked cheesy roulade & then all rolled up on chopped nuts. Daughter & my OH make it every Christmas Day. Excellent with all the roast vegs & cranberry sauce.
Tonights' meal was cooked vegs, cold cranberry sauce & cheese rissoles. J.