yes, of course i make demiglace for my pets that i freeze in ice cube trays :blobheart:
it’s just chicken bones, water, and a lil bit of apple cider vinegar to help max collagen extraction - cooked in a slow cooker for 16-24 hours before straining and reducing further then freezing in ice cube trays.
reducing it saves space and some kitties appreciate the silky texture of the concentrated stock. and it can be used for people food, too.
i normally remove the cubes from the tray and keep them in a freezer bag but i forgot about this one.