Set Sous Vide Cooker to 131°F / 55°C
Trim and portion individual Chuck ribs.
In vacuum bag seal individual ribs together with stout, canola oil, ¼ cup of stock, ginger, mirepoix, herbs, bay leaf and peppercorns.
Sous-vide for 24 hours. Remove and cool immediately if not preparing dish immediately.
Remove rib from bag reserving any liquid.
Season ribs and sear in a hot cast iron pan on 3 sides until caramelized (until the internal temperature of the ribs reach 131°F/55°C). Save pan for deglazing fond. Rest and complete sauce.