Ben & Jerry's New Marshmallow Pint Gets Its Pretty Color From Algae - Chowhound

Spirulina is a type of edible cyanobacteria, more commonly known as blue-green algae. It's been used in the foods of certain cultures for centuries but didn't really show up on American radars until the 1970s when it began being sold as a nutritional supplement. If you tried spirulina back then, you'll remember that it was dark green, not a vibrant blue like Ben & Jerry's Marshmallow Sky. Advertisement So how did…