A take on the classic Cosmic Brownies, but this time made in a large skillet! A chewy, fudgy brownie covered in a shiny chocolate ganache, and topped with rainbow covered chocolate chips. This skillet brownie is out of this world!  Ready for some nostalgia? I remember getting so excited when my mom would get me Little Debbie’s cosmic brownies. Having one as a dessert after dinner, or even better, bringing one to school? That was a treat! But guess what? Now that we’re adults, we can have these brownies whenever we want! So I got to work playing with my…