I have made this cobbler SO many times this past summer. When blueberries were on sale, $3 for 5 lbs? I made it three times. In a week. Yup, it's just that good. (Please note, I shared the cobbler with other people. Three cobblers to myself? I don't think even I could handle that sugar high.)
The original recipe is for blackberry cobbler, and, well, blackberries are nice and all, but my husband hates the seeds. Thus, blackberries are not often spotted in our home. You can make this with any sort of berry, or maybe even other fruit, sliced small, but fresh works better than frozen. I've done both, and the frozen berries tend to juice a bit too much and it gets soggy. That said, if you let them thaw, drain them, and dry them, it should be fine. Here's the recipe.
One last thing. The Pioneer Woman. If you haven't been introduced yet, oh my, but you need to be. I've yet to have a recipe of hers come even close to failing, and most I make again and again. On top of all that, she's hilarious. :)