Wendy’s chocolate Frosty has a secret ingredient – and it’s obvious when you know what it is

WENDY’S Frostys are a staple of the fast food chain, but many fans may be surprised to learn what’s in the sweet treat.

The famous chocolate Frosty has a secret ingredient that might seem obvious once you hear what it is.

The chocolate Frostys are actually made with not just chocolate, but vanilla too.

While fast food chains like Five Guys and Shake Shack fill their chocolatey shakes with rich chocolate, Wendy’s uses vanilla to cut the bitter and rich taste of pure chocolate.

Wendy’s chocolate Frostys tend to have a sweeter, less overpowering taste than other fast food shakes.

And this addition has been successful, as Mashed reports that Wendy’s sells a whopping 300 million chocolate Frostys a year.

In 1969, the founder of Wendy’s started putting Frostys in as a regular chain menu item.

Dave Thomas thought that people might want to finish their hamburgers with something cold, refreshing and sweet, thus came the Frosty.

While we know that the chocolate Frostys are confirmed to have vanilla mixed in, that’s pretty much all we know about the brown concoction.

The Wendy’s chain keeps all of their recipes, especially the frosty recipe, locked down and away from the public.

On their website, they do have to post certain allergy ingredients that let us know that frostys contain basic things like milk, sugar, corn syrup, cream, whey, nonfat dry milk and cocoa.

Frostys have been a Wendy’s staple for over 50 years, and it’s the secret vanilla-chocolate combo that sets their taste apart from the competitors.

Wendy’s Vice President David Lynch said that the recipe has stayed pretty much the same since the Frosty was released, and it’s never going to majorly change.

There has only been one edit in the last 50 years, due to customer demand.

The only difference is that ice cream has a large amount of butter fat, so we’ve lowered the [percentage] of butter fat in our Frostys to meet customer demand,” Lynch said on Mashed.