Beef and prune tagine with spinach couscous

Ingredients

• 2 large red onions, finely chopped
• 2 tablespoon olive oil
• 1 teaspoon cracked black pepper
• saffron threads
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground ginger
• 1 kilogram beef blade steak, cut into 4cm pieces
• 50 gram butter, chopped
• 425 gram can diced tomatoes
• 1 cup (250 millilitres) water
• 2 tablespoon white sugar
• 3/4 cup (100 grams) roasted slivered almonds
• 1 1/2 cup (250 grams) seeded prunes
• 1 teaspoon finely grated lemon rind
• 1/4 teaspoon ground cinnamon, extra
• 1 1/2 cup (300 grams) couscous
• 1 1/2 cup (375 millilitres) boiling water
• 80 gram finely shredded baby spinach leaves