A method and system for processing at least one rope of aerated confectionery foam. The method includes extruding at least one rope of aerated confectionery foam from an extruder. The rope is conveyed from the extruder to a rotary cutter. An anti-sticking agent, such as powdered starch, is applied to the rope as the rope is conveyed from the extruder to the rotary cutter. Finally, the rope is cut into pieces with the rotary cutter. In one preferred embodiment, the rotary cutter is operated to perform at least 5,000 cuts per minute.