Hi @PyreneanAubrie - dogs are so very different, aren't they? I know you've always said Brie isn't food driven, and of course none of your previous dogs have been, so it must feel quite insulting almost to be told to use it.
I do what @brushingboots does with tiny chunks of paté for outdoor work, and I've trained recall with bigger chunks (like the size of dice) of chicken and beef. I have ordinary Pooch and Mutt treatos cut up really tiny for normal training. Of course Bill is half a Lab so food is very effective with him. Paws Trading do a gourmet luxury rabbit paté that seems to be crack cocaine for dogs. Mind you, he's lying on his back right now, bollocks akimbo, sucking on a half devoured baby's dummy, so I'm not sure I should recommend anything that has worked with him...
I suppose you could try with teeny bits of dog pate just to see if it works, then fade it out once she's learned it? If she does; she might just turn her nose up then you get to be super smug 😄
On the subject of experienced dog owners: Bill is usually a miraculously self-cleaning dog, though I do sometimes have to scrape off the more congealed dots of mud. He currently has a muddy spot on his unmentionables. Do I (a) wait for him to clean it off himself or (b) see how long it takes to fall off by himself? I love my dog, but not that much 🙄
Photo of Bill's contribution to the Christmas tree. It was once a really godawful baby doll thing, I'm very grateful.