Nibblous | black-eyed beans with mushrooms

Ingredients

• 225g black-eyed beans
• 1 1/2 litres water
• 225g fresh mushrooms
• 3 tbsp oil (this is half what the books says - you might well get away with even less. I never measure this sort of thing)
• 1 teaspoon whole cumin seeds
• 1 2.5cm stick of cinnamon
• 1 medium onion, chopped
• 4 cloves garlic, finely chopped
• 1 tin chopped tomatoes
• 2 teaspoons ground coriander seeds
• 1 teaspoon ground cumin seeds
• 1/2 teaspoon ground turmeric
• 1/4 teaspoon cayenne
• 1 teaspoon salt (half what the book says)
• freshly ground black pepper
• 3 tablespoons chopped fresh coriander