In a bowl, combine the sliced chicken thighs with gochujang, soy sauce, honey, and sugar. Mix well and let it marinate for at least 30 minutes to absorb the flavors.
In a large skillet or wok, heat the vegetable oil and sesame oil over medium-high heat.
Add the marinated chicken to the skillet in a single layer. Sear for about 5-7 minutes, stirring occasionally, until the chicken is cooked through and starts to brown.
Add the sliced onion, red and green bell peppers to the skillet. Stir-fry for another 3-4 minutes until the vegetables are slightly tender but still crisp.
Stir in the minced garlic and grated ginger, cooking for an additional minute until fragrant.
Taste the stir-fry and adjust seasoning with salt and pepper as needed. If desired, you can add a bit more gochujang for extra heat.
Remove from heat and transfer to a serving platter. Garnish with chopped green onions and toasted sesame seeds.
For an extra crunch, you can sprinkle some crushed nuts like peanuts or cashews on top before serving.
Notes
For an extra crunch, sprinkle crushed nuts like peanuts or cashews on top before serving.