Grate the onion, garlic and ginger on the coarse side of a box grater (on with grater attachment of a food processor), set aside.
Wash and (optionally) peel carrots. Slice into ¼ inch (about ½ cm) rounds or on the bias. Set aside.
Measure spices and set aside.
In the same pan as the chickpea balls were cooked (and removed), heat up oil for the sauce and cook onion mixture for a couple of minutes, until the onion starts to become translucent.
Add spices and carrots, stirring for another couple of minutes.
Add strained tomato(passata) and let simmer for 10 minutes over low heat, cooking until carrot shave softened and sauce is thickened.
Season with salt and add olives and raisins.
Garnish with parsley or cilantro leaves