Make the sauce. Add warm water (1/3 cup), erythritol (2 teaspoons), and xanthan gum (1/8 teaspoon) to a bowl and whisk until dissolved. Be sure to sprinkle the xanthan gum over the top, otherwise, it will clump (note 3). Add the soy sauce (1/2 cup)and fish sauce (1 tablespoon), and whisk. Set aside.
Rinse noodles. Rinse your shirataki noodles (2 - 8 ounce packages) thoroughly by draining them in a colander and running water over the top as your toss the noodles with your hands for at least 1 minute. Set aside to drain.
Sear. Heat 2 tablespoons of oil in a large skillet over medium heat. Add chicken (1 pound) and sear each side (about 1-2 minutes) until golden (it won't be cooked through yet). Set seared chicken aside on a plate.
Saute. Add remaining oil to the skillet, along with the bell peppers (1) and shallots (2 small) and cook for two minutes. Add Thai chiles (1-2), garlic (3 cloves) and green onions (8), and cook for another 2 minutes, or until they become fragrant. Add the noodles and toss to coat in the veggies and oil. Fry for about 3 minutes (this helps remove any weird taste the noodles may have, don't skip).
Simmer. Add the chicken back to the skillet, as well as the sauce. Toss to coat everything. Bring sauce to a simmer and allow it to cook for about 5 minutes until the sauce thickens, the chicken is cooked through, and the veggies are tender to your liking.
Serve + enjoy! Remove from heat, stir in the basil (1 cup), serve warm, and enjoy!