Heat up a large saute pan or wok over high heat. Add 3 tablespoon of oil
Once hot, add the chicken. Season liberally with kosher salt.
Stir frequently to make sure each piece is evenly cooked
While your waiting for the chicken to cook, mix together all the ingredients of the sauce.
Once the chicken is cooked all the way through, remove to a plate.
Add the snow peas and water chestnuts. Season with salt. Add more a little more oil if needed. Cook until the peas are brighter in color with some bite left to them about 2 to 4 minutes.
Sprinkle the flour or corn starch over the peas and water chestnuts.
Add the sauce, stirring to cover all the veggies.
Add the chicken back in.
Cook until the sauce has thickened, a couple of minutes.