It's a drink. I joked about it at Viable Paradise this year, and John Scalzi asked that I actually make one and post a recipe.
2 Tbsp grenadine syrup
2 Tbsp Rose's sweetened lime juice, or fresh lime juice to taste
cinnamon oil (available where candymaking or cakemaking supplies are sold; try a craft store or Amazon)
about 1/2 cup orange juice, fresh or not-from-concentrate
3/4 cup ginger ale
(optional) one stick of Red Vines red licorice, with both ends snipped off
Combine the grenadine and lime juice in measuring cup. If, after trying a Bloody Scalzi, you find it too sweet or too sour, adjust the amount of grenadine or lime accordingly.
Dip the end of a toothpick into the bottle of cinnamon oil. Use the toothpick end to stir the mixture of grenadine and lime. (You are doing this, rather than using an eyedropper, because one drop of cinnamon oil is too strong.)
Top off the measuring cup to 3/4 cup with the orange juice. (Juice is okay with our without pulp, as long as you respect the pulp influences. If you use Low Acid orange juice, you are missing the point of the Bloody Scalzi.)
Pour the mixture into a glass over ice. A few cubes are okay, but using half a glass of crushed ice will make garnishing easier.
Add 3/4 cup ginger ale. A drier, spicier ginger ale is better.
Garnish with the stick of red licorice, if the glass is not too tall. With the ends snipped, it may double as a straw. Expect the cinnamon oil to remain on the surface of the drink.
The drink itself.
I would describe it as orange-red rather than pink. In my mind's eye, the drink color should match the skin color in this cover photo.