Fill a small glass with ice, then pour in some water. Then, take a small spoonful of the gummy candy mixture and hold it in the ice water so the water covers the candy but the candy doesn't spill out. Let it rest for about 20 seconds, then remove it from the ice water and the candy should have firmed up a bit. Touch it to see if it feels cool. Once the candy has cooled, you can taste it. Add more flavoring to the liquid sugar syrup if desired, then repeat this process in order to taste it again. If the candy won't firm up, you will need to add a little more gelatin.