There were studies done to find out whether the myth of fasted cardio burns more fat which was found to be wrong.
Well, first we have to go all the way over to Italy, to hear
from researchers who had a study published in the International
Journal of Sports Nutrition Exercise and Metabolism (21:48-54, 2011).
The Italian researchers wanted to see what would happen
when eight healthy young men did the following workouts:
Workout A: 36 minutes of slow cardio at 65% maximum heart
rate in the morning without eating
Workout B: 36 minutes of slow cardio at 65% maximum heart
rate in the morning AFTER a small meal
The RESULTS?
24-hours after exercise, the results found that eating before
cardio increased both calorie burning AND fat burning.
That’s right, eating before the workout increased fat burning
in the 24-hours after exercise.
The scientists concluded that “fasting before exercise does
not enhance lipid utilization; rather, physical activity
after a light meal is advisable.
As ummm has said have a light breakfast and then don't do any cardio for roughly 60-90 mins so then you have the extra energy and you also have an empty stomach, maybe you could look at stims to further boost your metabolic rate which would burn more fat.