Using a mini food processor, pulse the garlic and ginger.
Here are all the sauces you will need, plus sesame oil.
Add the all the sauces to the minced ginger/garlic... hoisin, lite-tamari, siracha, rice wine vinegar, sweet chili, and sesame oil.
Add half the sauce to the washed and dried shrimp. Stir and let the shrimp marinate for about 10-15 minutes (longer if you wish).
Now slice the red bell pepper, slice the water chestnuts in half, chop the scallions, and set aside snowpeas.
Combine water and corn starch. Set aside.
Heat a cast-iron skillet on medium heat. Once hot, add oil. Add the shrimp and grill 2 minutes on each side. You may have to do this in 2 batches, but you won't need additional oil.
Flip after 2 minutes on one side.
Remove shrimp from the skillet and set aside.
In the same pan on medium heat, add the bell pepper and snowpeas. You don't need additional oil. Stir and cook for 1 minute.
Add the chestnuts and remaining sauce. Stir and cook for 30 seconds.
Combine water and corn starch, and add to the veggies. Stir. Cook for 30 seconds.
Add the shrimp back in. Stir and cook for a minute. Turn off the stove.
Garnish with scallions. Serve with brown rice.