Preheat oven to 200 degrees. Line 2 cookie sheets with parchment paper.
In a mixing bowl, add in egg whites and instant coffee. Whisk until the coffee granules melt into the egg whites. Using a stand mixer and the whisk attachment, place the mixer on high and let it go until soft peaks form.
Add the cream of tartar and turn the mixer back on high to continue mixing.
While there are still soft peaks, add in the sugar a tablespoon at a time. Make sure you take your time. Continue to beat on high until all the sugar is in the meringue and the meringue has formed stiff peaks. When you take the attachment off and hold it upside down, the peaks shouldn't immediately fall. They should hold their peak.
Add in the vanilla and mix on medium until combined.
Using a piping bag and the 6B tip or the tip of your preference, squirt about 2 tablespoons of syrup around the top of the bag where you're holding it. Then scoop the meringue into the bag. Pipe small circles on the parchment paper.
Place in the oven for 1 hour. Turn the heat off and crack the door to finish cooling.