Spherification

Spherification is a culinary process that employs sodium alginate and either calcium chloride or calcium glucate lactate to shape a liquid into squishy spheres which visually and texturally resemble roe.

The technique was documented by Unilever in the 1950s[1] and brought to the modernist cuisine by the creative team at El Bulli under the direction of chefs Ferran Adrià and Albert Adrià.