Does anyone know of a Mediterranean/Persian grocery store near either Yardley, PA or Princeton, NJ?

Question

I need some special ingredients, like Pomegranate paste and Nigella seeds

Answer 1

find a Persian restaurant and ask them, that'll be your best bet

Answer 2

You may find some of these ingredients in a well stocked Indian store and NJ has plenty of those!

Pomegranate is known as "anardana" and nigella seeds are known as "kalonji".

If the Indian store only carries anardana powder, you can just add a little water to make a paste depending upon the recipe.