It's simply based on your taste ,if you want a thicker and smoother shake put little amount ,and if you want a hot chocolate type of shake put a large amount of syrup. Harshly's strawberry flavour is very strong so put a little amount. read more
You're not buying the syrup by the spoonful but by the bottle so just use a little at a time until you decide how sweet you want it. Light brown if not too sweet and looking like chocolate milk if you want it sweeter-it's not rocket science-my kids all made it themselves when they were about four years old. read more