Lemony chicken kebabs

Ingredients

• 1/3 cup (80ml) olive oil
• 2 tablespoon coarsely chopped preserved lemon rind
• 2 tablespoon lemon juice
• 4 clove garlic, halved
• 4 (cm) (1½ inch) piece fresh ginger (20g), grated
• 1 teaspoon each ground coriander and cumin
• 1/2 teaspoon ground turmeric
• 1/4 teaspoon ground cinnamon
• 1 tablespoon light brown sugar
• 2 tablespoon fresh marjoram leaves
• 1 kilogram (2 pounds) chicken thigh fillets, chopped coarsely
• 1 1/2 cup (420g) greek-style yogurt
• 1/3 cup finely chopped fresh coriander (cilantro)
• 1 lemon (140g), cut into wedges