What's grenadine? Good question. Traditionally it's pomegranate syrup. Why is it called grenadine? Because in French pomegranates are grenade (and if you're thinking...wait, grenade as in *boom* and grenade as in pomegranate? Yes, grenades are called grenades because they looked like pomegranates.)
Anyway, grenadine these days is kind of generically made with any red fruit, like raspberries, currants, etc. And most grenadines are cheaply made of flavorings and syrup. You can make your own, which is far superior in flavor, but usually not the bright red that comes from the fake stuff, by reducing pomegranate juice and sugar.
Enough grenadine to make it pink
Maraschino cherry on top
Kids LOVE shirley temples.
By the way, my family is loving this series because they're drinking a lot of juice and soda, things I don't normally allow in the house. I might throw a mocktail party a couple times a year, but this drink-a-week thing has some fans around these parts in heaven. Enjoy it, kid, because as soon as I can, you're back to water or milk.
Check out this update where you'll learn what the original Shirley Temple really contained. Super delicious!