Preheat the oven to 400 degrees and grease a 9x13 baking dish (you can use an 8x11 dish, a cast iron skillet, or a deep dish pie plate as well). Set aside.
Bake the cobbler at 400 degrees for 10 minutes. Then reduce the temperature to 350 and bake for 45-50 minutes, or until the biscuits are golden brown and the filling is bubbling up. If needed, tent a piece of foil on top of the cobbler if the biscuits are browning too quickly.
*You can use any kind of apple you prefer. I used honeycrisp.
**You can buy cinnamon sugar, or you can make cinnamon sugar yourself by mixing 2 Tbsp granulated sugar with 1-1 1/2 tsp ground cinnamon (depending upon how much cinnamon you like).