I call that Cthulhu bites. I don't know what they put in that but the cats will sell their souls, my soul and the kid next door's soul for those snacks. And we could hide a variety of stuff in them. They also make a chewy snack with a soft center that was excellent for hiding small pills.
Blue is afraid I have his medicine to give him again. ( lemmy.world )
Every time I stand near the kitchen and then later start to call his name, he hides. He knows his antibiotic is in the fridge.