not enough cooking time
I made halved the recipe and baked in my toaster oven. I wouldn't say my tenders were any larger than the standard size but after 10-11 minutes per side in a pre-heated toaster oven, they were still a little icky-sticky inside (I was about to slice up and serve to my kids - they aren't "dippers"). Popped them back in for another 5-7 minutes to make sure they were done enough. Agree with previous posters that they don't look anything like the picture -- I think you need to flip more than once during the cooking process to get an even golden glow.