What is the best approach to recover from slow flight at high altitude?

The best approach to recover from slow flight at high altitude involves increasing thrust and reducing bank angle to regain airspeed. At high altitude, the air is less dense, which means that the aircraft requires a higher true airspeed to maintain controllability and prevent stalling. By increasing thrust, the pilot can generate more lift and regain necessary airspeed. Simultaneously, reducing the bank angle helps to decrease the load factor on the wings, allowing the aircraft to recover more efficiently from a slow flight condition. This combination of actions maximizes the aircraft's performance in a situation where the margin for error is narrower due to altitude. Thus, correcting the flight path effectively enhances the pilot's ability to safely navigate back into a safe operating speed and configuration.