Heat the sugar/water mixture to a boil. Set aside until lukewarm.
Add the flavoring. Pour into bottles.
Notes
I re-use bottles off from things like spaghetti sauce..I have even given some of these syrups out to friends as a "treat" for my kids when they visit..they love the decorations on the bottles ;)
It tastes just like the "fake" syrup that you buy in the stores. I have used other flavorings to make syrups for our rice "shakes"...such as strawberry, and lemon to name a few...