2 flat mushrooms
2 sprigs of rosemary (or thyme)
2 cloves of garlic
20g butter
salt & pepper
Place in your vac pac bag (or stasher bag) & Sous Vide at 167 º F /75 ºC for 1 hour
You will need to weigh it down in the sous vide (as mushrooms have a lot of air in them).
Serve straight from the sous vide or you can pan fry to reheat later.