Heat 2 tablespoons olive oil in a large saucepan over medium-high heat. Add 2 coarsely diced onions and fry for 3-4 minutes until translucent.
Pour in 2.5 liters water and bring to a simmer. Add 3 finely chopped garlic cloves, 4 bay leaves, 4 allspice grains, 1 tablespoon black peppercorns, 4 tablespoons dried mixed soup vegetables, 1 tablespoon chicken stock concentrate (or 2 scoops meat stock), 1 teaspoon crushed basil, 1 teaspoon crushed thyme, 2 teaspoons crushed oregano, 1 teaspoon chili powder, and 2 teaspoons sea salt.
Simmer over medium heat for 20 minutes to allow the aromas to develop.
Add 1.6 kg bite-sized cleaned chicken stomachs and simmer for at least 40 minutes.
Stir in 1 tablespoon dried soup vegetables (for decoration), 4 tablespoons dark soy sauce, and 5 small light green Turkish peppers cut into small pieces.
Heat over medium heat for 2-3 minutes without boiling to preserve the vegetables. Season with salt and pepper from the mill. If desired, stir in 1 teaspoon lemongrass powder, 3 tablespoons red wine, or 2 tablespoons apple cider vinegar.
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