Put the sugar, corn syrup, and extract into a bowl. Add 1 Tablespoon of the water.
Whisk until the mixture is smooth. You may need to add more water to get the right consistency. Add a few drops at a time. I know that sounds like an overkill, but it goes from close to being perfect to completely runny in just a few drops.
Dip your baked and cooled cookies into the glaze. Let the excess drip off.
Put the cookies on a rack. I like to line a cookie sheet with parchment paper and then add the rack to make the clean-up easier.
Add sprinkles and let them to dry until completely hard. I would give it a couple of hours.
Put on a plate with a glass of milk and leave them for Santa. Don't forget the reindeer food. Or...You could pack them up in a Christmas themed packaging and give them to your Secret Santa.