Punjabi Cabbage from The Food of India: A Journey for Food Lovers by Priya Wickramasinghe and Carol

Ingredients

• 1 teaspoon ground coriander
• 2 teaspoons ground cumin
• 1 tablespoon unsalted butter
• ¼ teaspoon chilli powder
• 2 1/2 cm (1 inch) piece of ginger, chopped
• 2 green chillies, seeded and chopped
• 4 tablespoons oil
• ½ onion, roughly chopped
• 1 garlic clove, roughly chopped
• 1 teaspoon cumin seeds
• 1 teaspoon ground turmeric
• 500 g (1 lb 2 oz) green cabbage, finely shredded
• 1 teaspoon salt
• ½ teaspoon ground black pepper