Place the 300 g chopped spinach in a bowl, add 1 tbsp salt, and set aside for a few minutes to soften.
Finely chop the 2 medium red onions.
Heat 1/4 cup olive oil in a pan over medium heat, then sauté the onions until soft and lightly golden.
Add black pepper and cook briefly, then remove from heat and allow to cool.
Squeeze the spinach thoroughly by hand to remove excess liquid.
Add the spinach to the cooled onion mixture.
Stir in:Juice of 1 lemon4 tbsp pomegranate molasses5 tbsp sumac1 tsp citric acid150 g walnuts (if using), crushed Mix well until fully combined. Adjust seasoning to taste if needed.