Preheat the oven to 225°F (107°C). Line a large baking sheet with parchment paper.
Add the egg whites to the bowl of a stand mixer. Using the wire whisk attachment, beat at high speed until the eggs turn foamy white and soft peaks are just starting to form, about 1-2 minutes.
With the mixer still running, slowly add the sugar, 1 tablespoon at a time, until all of it is added. Do not stop the mixer to scrape any sugar that might be stuck on the sides of the bowl. Continue to beat until mixture is thick, glossy and stiff peaks form. This can take several minutes, depending on how fine the sugar is. Once the peaks are stiff, you can scrape the sides of the bowl to get any sugar that stuck to the sides, add it back into the mixture and then beat on high for a few more seconds until that excess sugar is incorporated. I found that it is important not to stop the mixer in between. If you stop it, the mixture does not whip up to stiff peaks. Once your meringue is ready, remove it from the mixer.
Sprinkle in 1 tbsp of shredded coconut. Use a spatula to gently fold it in until it is evenly incorporated.
Transfer the meringue to a large piping bag with an open star tip. I used a Wilton 4B tip which has a front opening of about .5 inch. You can use other tips or tip sizes.
Pipe the meringue into ovals between 1.5 inches and 2 inches long onto the prepared baking sheet. Try to make the meringues all about the same size. The cookies can be piped pretty close together as they do not spread much. To pipe, make it like you are drawing an oval and then add another partial layer on top to close up the oval so there is no hole in the middle. See photo in post for reference.
Wet your finger and press down on the tops to remove the points on the cookies. Sprinkle the remaining coconut over the cookies.
Place cookies into the oven and bake for 1 hour. To test if the cookies are done, they should feel dry on the outside and you should be able to pull them off the parchment paper. The cookies will initially be very crisp when they are done but if you let them sit out a few hours uncovered at room temperature, the inside will become soft and chewy (but the outside stays firm and should not turn sticky). Once they reach this stage, they can be stored in an airtight container.
Notes
These cookies work best with superfine sugar but you can substitute with regular granular sugar. Regular granular sugar will cause the cookies to look more tan when they are finished. They will also need to cook longer. After baking them for an hour in the oven, you will need to turn the oven off but keep the cookies in the oven for an additional hour. If you use regular sugar, your meringue will also whip to stiff peaks much faster (about 1-2 minutes).
I used two egg whites from standard US large eggs. The total weight for the egg whites should be about 60 grams.
To successfully make meringue, make sure your egg whites don't have any egg yolk (not even a drop), and your mixing bowl, wire whisk attachment and anything else the egg whites touch must be clean without any grease. When making the meringue, make sure to stop the mixture once it has reached stiff peaks. If you mix too long the meringue will become too stiff and break down again.
These are a meringue type of cookie but don't have the same texture as regular meringue cookies. When the cookies are done, they will be dry on the outside and airy and chewy on the inside.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.