SOMERVILLE — The good people of Massachusetts do not mess around when it comes to Marshmallow Fluff .

That’s why, every September, a section of Somerville is shut down to welcome the hordes of fluffer-nutcases who want to celebrate one of the state’s most beloved food inventions.

On Saturday, the 20th annual Fluff Festival descended on Somerville, bringing with it a unique brand of sweet, sticky insanity in the form of Fluff-based vendors, shops, games and music.

Heard of Burning Man? This was Burning Stay Puft Marshmallow Man.

There were Fluff cocktails, Fluff-based soap, Fluff hot dogs, Fluff ice cream, a mini Fluff Museum, Fluff sculpture classes and even an oddly specific robot that helped you stack Fluff containers.

The 2025 Fluff Fest had an overwhelming turnout. Fittingly,

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