Snickers Stuffed Brownies

"Our local markets are already stocked with holiday candy, which means it's been creeping into my grocery basket - how does that happen?! It also means holiday candy has been creeping into our desserts. And this ridiculously simple Snickers Stuffed Brownies recipe is one of my favorite ways to use leftover (oh who are we kidding, it's not leftover) candy bars. The first time I made Snickers Stuffed Brownies, I brought it to a girls game night and it was the first thing all gobbled up. I like to use a brownie batter mix (Ghirardelli is my personal favorite), but you could totally make the batter from scratch if you prefer."