Noticed you started doing treadmill in an incline!! How do you like it? I can't do it without an incline now that I started!
Also yes, burning all those calories all in one go may make you hungry as hell lol. But I still think it would be better to do it all at once rather than 2x a day, but that's me haha and I don't like cardio that much. There are also researches that were done that proved fasted vs non-fasted cardio did not affect calories burned and fat burned over time. I believe Greg Doucette made a video about that not long ago on youtube, something you might want to try out!