(Optional Step) Place the chicken in a strainer or colander and sprinkle it with baking soda. Mix well and let this mixture marinate for about 20 minutes. Rinse the chicken thoroughly, ensuring it's completely free of any baking soda. Set aside.
Heat oil in a large skillet over medium heat. Add the slit green chili pepper and sauté for about a minute. Add the garlic and ginger and sauté until the raw smell disappears, or about 20-30 seconds.
Raise the heat to medium-high and add the chicken, spices and salt and cook, stirring frequently, until it is half cooked or begins to brown, about 5 minutes.
Add the coconut milk and let it come to a simmer. Cover and let this cook for about 5 minutes, or until the chicken is cooked through. Turn off the heat and add the lime zest and juice. Garnish with chopped cilantro and serve over white or brown rice. Enjoy!