Chicken Provencal

• 1 onion
• 1 broiler-fryer
• 230 gr cherry tomatoes
• 140 gr low-sodium (canned)
• 120 gr pitted ripe olive (halves)
• 60 ml olive oil
• 26 gr garlic (minced fresh)
• 16 ml oil until eggplant is crispy (hot)
• 3 gr marjoram (dried)