Take a small to medium-sized bowl add all the sauce ingredients and stir.
Get a small cup, mix the cornstarch and cold water and stir until totally dissolved. Then mix the cornstarch and the peanut sauce together until smooth.
Heat in the microwave for 1 minute and then stir; heat for another minute or until the consistency is where you want it. It will thicken up further on the counter. *
Notes
*If the sauce gets too thick, you can add some water to thin it.