Using the "co-pitching" method as outlined here: homebrewtalk.com/forum/threads/fast-souring-modern-methods.670176
Salt, coriander, lime zest last 10 min of boil.
3 good sized jalapenos (seeds removed) last 10 minute boil, roasted & soaked in vodka overnight before.
Co-pitched yeast with 4 x capsules Swanson's L. plantarum.
3 more jalapenos (seeds removed, unroasted) day 5 fermenter.
The hops is added once beer in fermenter reaches the desired sourness (by taste, I don't have PH meter). This stops any further souring.
This was the best beer I've brewed so far (12 brews).