To make the brown onions for this recipe- take 375 grams of onions (about 4 medium onions), slice thinly. You may brown them by deep frying in batches or shallow fry in 2-3 tablespoon oil until they turn golden brown. Do not brown the onions too much, as they will make the entire dish bitter. Remove them when they turn golden brown, since they will continue to cook in the residual heat. Transfer to a plate lined with an absorbent napkin and spread it out. Let it cool then transfer to a blender and proceed with the recipe.