Looking for safe cat treats for my Sgt. Sassie Meowstein
By the way love your website. I found so many things to do for my endless projects.

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I have more than a few cats so there is a competition factor. They grab anything, even if they don't like it, just so another doesn't get it first.
They do tend to have individual likes. I have a couple who love Cheetos, I have to hid the bags otherwise they get into them. While the others look on with disdain that anything other than me would eat that stuff. Another doesn't like Cheetos buts eats potato chips. A universal yuk seams to be anything that is hot. as in pepper hot.
Something you could try is a food processor. Grind it all up together, then add a little water and make it into bit size bits. If that is not acceptable add some tuna juice to the mix.
Starvation doesn't usually work because they know you won't hold out. You will break before they do. And their begging can be pretty persistent.