Prepare all the ingredients.
Peel the aubergines.
Cut them in large pieces.
Place the pieces of aubergines and leaves of sorrel in a stockpan filled with salted water.
Leave to cook until aubergines are completely cooked.
Shred the flesh of the mackerel...
...in a sauce pan.
Add the minced onions...
... crushed tomatoes ...
...and chopped peppers.
Pour the equivalant of half glass of oil on these ingredients.
Add salt.
Once the aubergines are cooked...
...drain them.
Keep their water ...
...to cook the rice.
Mix the flesh of the aubergines...
...and add the obtained puree in the sauce pan along with the other ingredients.
Place the sauce pan on low heat ...
...until it just starts to boil.
Add salt and mix. Magagni will be ready when oil comes to the surface of the sauce.
Serve on hot rice and eat with a garlic and lemon pepper puree.