This is a vegetarian version of Khoresh Bademjan, using yellow split peas instead of lamb or beef.
In a large pan over medium-high heat, fry the onions in butter until golden.
Add turmeric to pan and continue to fry until rich golden brown.
Add tomato paste, salt, pepper, saffron, and split peas. Reduce heat to low and cook briefly, sttirring to incorporate.
Add the pomegranate concentrate and continue cooking, stirring to incorporate.
Add the orange zest, orange juice, lemon juice, and hot water; bring to a boil.
Add eggplant, return to a boil, cover, and continue cooking over low heat until eggplants are very tender.