While the cookies cool make the meringue.
Start by adding 3 room temperature egg whites and ½ teaspoon of cream of tartar to the bowl of a stand mixer. Make sure the bowl is completely free of grease. Whisk the egg whites until soft peaks form.
Meanwhile heat ¾ cups of sugar and ¼ cup + 2 tablespoon of water on the stove until it reaches 240 degrees on a candy thermometer. Once it reaches 240 degrees, slowly pour it into the egg whites with the mixer on medium low speed.
Once it is all added turn the mixer up to the highest speed (one interval at a time) and whip the mixture until very firm peaks form. This can take up to 10 minutes.
Once firm peaks form add in 1 ½ teaspoon of vanilla bean paste and mix again on high speed to ensure the consistency is still firm. If the meringue is still warm continue to whip until it is room temperature.
Add the meringue to a piping bag fitted with a decorative tip. Pipe a generous portion on meringue onto each cooled cookie. With a torch, toast the meringue until it is golden brown, then serve!