Over medium/high heat whisk the sugar until it’s fully dissolves. The water should get hot during this process but you do not need to reach a boil.
Remove from heat and stir in the vanilla bean paste or vanilla extract.
If you are using vanilla beans slice them down the center and then use the tip of your knife to carefully scrap out the beans (the little black dots). Add those as well as the vanilla bean pods to the syrup.
Whisk to combine.
Allow the mixture to sit and cool for about 10 minutes.
If you used vanilla bean pods remove the pods now.
Pour the vanilla syrup into your storage container.
Notes
If using vanilla beans use 2-3 vanilla bean pods. If using vanilla extract use 1 heaping tablespoon. Vanilla bean paste, vanilla beans or vanilla extract will all work well in this recipe. However, if you are wanting the look of the vanilla beans (little black speckles) you will need to use either vanilla bean paste or vanilla beans.Store the vanilla syrup in an air tight container in the refrigerator for at least two weeks.Swap the granulated white sugar for brown sugar for a slightly different flavor.