Fill a cup with ice and add half an ounce of grenadine to one ounce if you want it very sweet.
Top it off with cola. Stir well.
Garnish with a nice bright red maraschino cherry and serve immediately.
Notes
To make a more balanced “adult version,” add just half an ounce of grenadine and the juice of half a lime. This will balance some of the sweetness with acidity and is delicious.
Add fresh mint as a garnish to enhance the sensory experience of this soda drink.
If you are dead set on turning this into a cocktail, keep the lime and add two ounces of dark rum or whiskey. I don’t think Roy Rogers would approve, but if you must, you must. We won’t judge!