Indian Spiced Mushroom Sauce from The Cook's Companion: A step-by-step guide to cooking skills inclu

Ingredients

• Handful of fresh coriander or mint leaves, chopped roughly
• 2–4 pinches cayenne pepper
• 50 g (1 oz) butter
• 1 tablespoon groundnut or sunflower oil
• 2 teaspoons ground coriander
• 1 teaspoon ground cumin
• 1 teaspoon ground cinnamon
• 5 cm (1 in) piece fresh ginger, peeled and chopped finely
• 3 large cloves garlic, chopped finely
• 175 g (6 oz) mushrooms, chopped finely including stalks
• 2 tablespoons tomato puree
• 125 ml (4 fl oz) water
• 4 tablespoons lemon juice, strained
• 300 ml (14 pint) double cream
• Salt