1. It's not caviar. It's Cushuro. A cyanobacteria (Nostoc sphaericum) that grows in lagoons and wetlands in the Andes above 3.000m.
Specialists say it contains more protein than meat and more calcium than milk.
2. A dish at Central “MIL Lab - 3.750 m. Native Potatoes, Cushuro, Egg yolk, Beef”.
3. At the market in Cusco, you can also find it