Peanut Butter Cup Sparkling Water Is Coming Thanks to Liquid Death and MrBeast

I recently compiled a whole list of new drinks from Liquid Death set to launch in 2026. At the end of that list, I mentioned I got a hot tip about a collaboration coming out late next year. That collaboration is so weird that I had to cover it separately. So here we are. Liquid Death is teaming up with MrBeast’s Feastables chocolate brand. 

Halloween 2026 will see Liquid Death launch a Feastables Peanut Butter Cup sparkling water. Read that a few more times. We have less than a year to prepare our minds and bodies for a peanut butter and chocolate sparkling water. In a world where Trolli-flavored Mountain Dew got decent reviews, we only have ourselves to blame. It’s time to stop having children; this timeline is beyond repair.

Can it really be weirder than Liquid Death’s previous collaborations?

In my opinion, this tops the list of weird Liquid Death flavor collaborations. Last year’s Van Leeuwen Hot Fudge Sundae sparkling water was truly L.D.’s “your scientists were so preoccupied with whether or not they could, they didn’t stop to think if they should“ moment—but it was still a partnership with a classy brand, so it came off as eccentric. Meanwhile, this year’s Fruity Pebbles Sparkling Water worked so well that it retroactively became un-weird.

Is there anything unique about Feastables’ Peanut Butter Cups?

Per Feastables’ website, they are committed to ethically sourcing their cocoa from well-paid farmers who don’t utilize child labor. We can all get behind that regardless of whether we find the brand’s figurehead annoying. 

The actual shape of Feastables’ peanut butter cups is also different from the classic ridged edge we’re all used to. These have a completely smooth, round edge closer to a Dove chocolate. I’ve never tried them, but I might have to give them a review before Halloween 2026 to make sure I know the authentic flavor Liquid Death is aiming for.

Does this sparkling water actually contain peanuts?

That’s one question I don’t have the answer to—yet. I asked the team at Liquid Death’s NACS Expo booth; they couldn’t confirm or deny anything since the recipe isn’t 100% finalized at this time. That said, I highly doubt the final product will contain any peanuts; the outstanding Reese’s Hot Chocolate proved that you can entirely replicate the peanut butter cup flavor profile without peanuts.