The addition of pineapple, another ubiquitous Hawaiian treat, adds much -
needed tanginess and the coconut milk, standing in for the dairy that's present in traditional sherbets, adds a light creaminess.
Not exact matches
Taste the kale and adjust accordingly... it may
need more sweetness,
tanginess or salt.
It
needs to have a right balance of sweetness and
tanginess.
You don't really
need to add the fermented foods, it would give it some extra
tanginess, but I'm sure it'll be yummy regardless.