SOMERVILLE, Mass. — Somerville’s annual “What the Fluff?” Festival returns to Union Square on Saturday for its 21st year.
Community members are invited to join the free festivities from 1 p.m. to 5 p.m. to celebrate the invention of marshmallow fluff.
The festival will feature fluff-themed games and musical performances.
More than 100 vendors will offer fluff-inspired treats and dishes.
Organizers said approximately 30,000 people are expected to attend the sweet celebration.
Download the FREE Boston 25 News app for breaking news alerts.
Follow Boston 25 News on Facebook and Twitter. | Watch Boston 25 News NOW
©2026 Cox Media Group
/cloudfront-us-east-1.images.arcpublishing.com/cmg/7QOJU3BNCJERBNKJC5LWTBYFLU.png)
