Clean, wash and cut the peppers into thin strips. Clean, wash and cut spring onions into rings. Wash marjoram, dab dry and pluck the leaves from the stalks. Mix vinegar, salt, pepper and sugar. Fold in 4 tablespoons of olive oil. Stir in marjoram.
Mix the bell peppers, olives and spring onions, pour the vinaigrette over it and mix well, allow to soak. Meanwhile peel garlic and chop very finely. Heat the rest of the oil in a large pan, add the garlic, sauté briefly and fry the slices of bread briefly on each side. Remove from the pan and put aside. Pour the salad into a bowl, crumble the feta cheese over it and serve garnished with marjoram as desired