I love that stuff. I searched for “Peruvian green sauce” and found a lot of stuff that I’m not sure is similar enough.
Ask La Granja.
I’ve done this with other products before. I went to the website, told them I liked it quite a bit, gave them my zip code and several times they sent me a list of retailers where I can buy it.
I did that, no answer yet.
I’m not sure why they would help, surely it’s in their best interest that eating at their place be my only option for the stuff.