Modern salon furniture is not something that’s discussed in the Harry Potter books, as their focus on fashion skews more towards wearing robes and house colors. But unless they’re Muggles, everyone in the realm of the Harry Potter books knows about and enjoys the beverage butterbeer.

But you don’t have to be part of the wizarding community to enjoy butterbeer in a unique way that is predicted to be a trend in 2018 — butterbeer as a hair color.

In the Harry Potter books, Butterbeer is a yellow beer-like beverage described as tasting “a little bit like less-sickly butterscotch.” It has a slight alcoholic content, and Harry and his fellow students from Hogwarts buy it when visiting the nearby village of Hogsmeade.

In the real world, butterbeer is served at the Wizarding World of Harry Potter in Universal Studios, and press materials describe the drink as “reminiscent of shortbread and butterscotch,” according to Fox News.

In Bon Appetit’s January 2002 issue, J.K. Rowling, author of the book series, was asked what butterbeer tastes like, and she said: “I made it up.”

Universal said the version they sell, which is sold in two varieties, regular and frozen, was tasted and approved by Rowling.The regular version is drawn from a tap like beer, then whipped topping is added. They have declined to share the recipe, but the recipe below is a version shared by Fox. Just don’t use it on your hair.

And as for butterbeer hair color? It is various shades of butterscotch yellow, as you can imagine. You can see photos of butterbeer hair color on Revelist here.

BUTTERBEER

1 cup light or dark brown sugar

2 tablespoons water

6 tablespoon butter

1/2 teaspoon salt

1/2 teaspoon cider vinegar

3/4 cup heavy cream, divided

1/2 teaspoon rum extract

Four 12-ounce bottles cream soda

In a small saucepan over medium, combine the brown sugar and water. Bring to a gentle boil and cook, stirring often, until the mixture reads 240 F on a candy thermometer.

Stir in the butter, salt, vinegar and 1/4 heavy cream. Set aside to cool to room temperature.

Once the mixture has cooled, stir in the rum extract.

In a medium bowl, combine 2 tablespoons of the brown sugar mixture and the remaining 1/2 cup of heavy cream. Use an electric mixer to beat until just thickened, but not completely whipped, about 2 to 3 minutes.

To serve, divide the brown sugar mixture between 4 tall glasses (about 1/4 cup for each glass). Add 1/4 cup of cream soda to each glass, then stir to combine. Fill each glass nearly to the top with additional cream soda, then spoon the whipped topping over each.