This type of food engagement is basically “really fun luring”.
You can experiment with different ways to have your dog chase the food in your hand:
Pay attention to your dog: Which one does he like the most? Do more of those variations that he really enjoys.
I personally do not use a cue for either type of food chasing. I might say “get it” or something else motivating (or just random blabla like I do in the video 😉 ).
However, if you want to introduce a verbal cue for this, you certainly can do so!