I should probably join the food group as well, but here's quick question... when I tried giving Ruby peanut butter she turned up her nose. I thought dogs loved peanut butter. The type I have at home right now is the organic, straight-up peanuts without any corn syrup in it. Should I try Jiffy or a similar sweeter PB?
Also... I just googled this and got conflicting answers... do you think she'd like vegemite? (She is an Australian labradoodle after all ;-)). My dh is Australian so we always have vegemite around...
Breeze didn't like peanut butter at all when she was young puppy. Now that she is 8 months, it is one of her favorite treats! You might try again in a few months.