Pre–heat Oven at 170° C.
Put dates in a saucepan, cover with water & leave until dates start to dissolve, then add Vanilla, Marg, Bananas (and Syrup), and Cinnamon. Take off heat once marg has melted.
Boil parsnips until tender, drain and blend or mash. Add date mixture & blend again (or mix thoroughly).
Sift Flour and Bicarbonate of Soda & mix. Add slowly to
Parsnip mix, adding water if the mixture is too dry. When finished, whisk. The mixture should be dropping (not runny or dry).
Bake in greased cake tin preheated 170°c oven for ~1 hour. Check after 30 mins as ovens vary. The outside should be crusty & the inside moist.