Preheat oven to 325°F. Spray mini muffin tins with oil.
In a large bowl stir egg whites until frothy.
Stir coconut and sugar into the egg whites. Mix until the mixture holds together when you squeeze it in the palm of your hand.
Form a heaping tablespoon of the coconut mixture into a ball and place it in the tin. Using your thumb or a liqueur glass, press the ball into the sides of the tin. The crust should be about ¼ inch thick.
Bake tartlets until golden brown, about 20 minutes.
Remove from oven and let cool slightly. Transfer to wire rack and cool completely. Can be made several days in advance.
VANILLA-WHIPPED CREAM
Cut vanilla bean in half lengthwise. Scrape seeds into cream (reserve pod for another use). Beat cream until soft peaks form.
SERVING
Fill coconut tartlets with vanilla-whipped cream just before serving.
Garnish with crystallized ginger. Serve.
Notes
*If I can't unsweetened coconut I make these with sweetened coconut.**Thanks to Gill for this tip - Try these without sugar and they come out of the pan beautifully. Since coconut is sweet this makes perfect sense, I just haven't tried it yet.