Marinated lamb kebabs

Name: Marinated lamb kebabs
Ingredients: 700 g (11⁄2lb) boned leg of lamb; 50 g (2oz) spring onions; 2 lemons; 75 g (3oz) ready-to-eat dried apricots; 150 g (5oz) ready-to-eat dried figs; 1 garlic clove; 90 mL (6 level tbsp) Greek yogurt; 75 mL (5 level tbsp) smooth peanut butter; 10 mL (2 level tsp) each ground coriander and cumin seeds; 5 mL (1 level tsp) ground fenugreek; 2 1/2 mL 2.5ml (1⁄2 level tsp) chilli powder; 45 mL (3tbsp) olive oil; Salt and ground black pepper; 225 g (8oz) onions; 2 large oranges