Crush nutmeg into small pieces (you can use a knife, but carefully). Toss with the remaining ingredients, and scatter on a swiss roll tin. Place in the oven and cook for 5 to 10 minutes, until fragrant (watch carefully so it doesn't burn). Remove from the oven and let cool.
Place all of the spices in a food processor or spice grinder and grind to a fine powder. Store in an airtight container.