<human>: Hi guys!

I know this question has been asked time and time again (I have read 10+ threads just so I won't be a nuisance asking something that has already been asked) but I really do need your help! 

To preface, my rescue pup is extremely picky. She gets homecooked food mixed with 1 nugget of Primal Freezedried Raw every meal and even then she's super fussy. We could give her some food she really loves and add carrots, and she *will* eat everything but the carrots. She even spits out food or blows them away when she doesn't like it. She's the "eat to survive" and not "survive to eat" dogs :P

I just learnt today that Zuke's, our go-to commercial treats have been bought over by Purina, and I guess the current few packets we have will be our last batch. I understand that they are still operating independently, but I'm just playing on the safer side. 

We also use liver brownies (Peace and Woof recipe) and our own dehydrated liver, heart, gizzard, jerky, but she only responds well enough for liver. Giving her too much liver causes her to have loose stools. She responds 70% of the time to homemade tuna/sardine/salmon fudge. We need ideas for really high value training treats preferably made in USA with no recalls or something that is homemade (we have a dehydrator and an oven). We will be going for obedience class soon so we need all the high value treats we can get! 

Also, we have tried the following that don't work:

1) peanut butter

2) cheese 

3) yogurt 

4) natural balance treats 

5) dehydrated jerky, fruits, gizzard and heart 

6) fruits and veges (sweet potato, banana, apple, carrots, green beans, and even the smelly king of fruits durian) 

7) applying a layer of fish sauce on treats (she just licked the fish sauce off and spit it out -.-)

TIA!

Summarize the given text in a few sentences.
<bot>: fussy dog, rejects dehydrated jerky, heart and gizzard, only likes liver. Need ideas for very very very high value treats.