In a small mixing bowl, combine soy sauce, whiskey, brown sugar, water, rice vinegar, and red pepper flakes. Set aside.
Slice red peppers and coat with light oil, black pepper, and 1 tsp salt. Spread on a baking sheet and broil on high for 7-10 minutes. Remove and set aside.
Slice chicken thighs into strips, taking care to remove any large chunks of excess fat.
Add sliced chicken, coconut oil, minced ginger, minced garlic, white pepper, and remaining 1 tsp salt to a large nonstick skillet. Heat on medium-high.
Cook chicken for 10-12 minutes, or until all juices have evaporated and the pieces has begun to brown on each side.
Turn heat down to medium and add whiskey sauce directly to the pan with the chicken. Let sauce and chicken boil for 10-15 minutes (to boil off as much alcohol as possible).
Turn heat to low and add cornstarch slurry directly to the pan, stirring constantly until the sauce has thickened completely, about 1-2 minutes.
Add roasted red peppers to the pan and toss until completely coated in sauce. Serve over rice and garnish with sesame seeds!