Lamb Vindaloo

Ingredients

• 1½ tablespoons coriander seeds
• 1 teaspoon cumin seeds
• 10 black peppercorns
• ½ teaspoon mustard seeds
• 2" cinnamon stick
• 4 cloves
• 1 tablespoon red pepper flakes
• 2 green cardamom pods, toasted
• 10 cloves garlic, grated fine
• 1½" ginger root, grated fine (or 25g each of grated ginger and garlic)
• 3 tablespoons red wine vinegar (or another vinegar)
• 3 tablespoons water
• 2 medium onions, chopped fine
• 2 lbs lamb, cut to 1" pieces
• 1 teaspoon salt
• ½ teaspoon turmeric
• 1 tablespoon tomato paste
• 3 tablespoons vegetable oil
• 1 tablespoon red wine vinegar
• 1 teaspoon sugar