To the same medium bowl, whisk together the garlic, ginger powder, onion powder, cornstarch, water, soy sauce, and honey.
Cut salmon into 1-inch cubes; add to the bowl of sauce and gently stir to coat the salmon.
Let sit for 2 minutes and then drain the sauce into a new bowl. Save the sauce as it will be used later.
Wash and dry the cutting board, knife, and your hands after touching the raw salmon.