To a mixing bowl, add the chopped chicken, cornstarch, chili powder, salt, black pepper, cumin, coriander, and red pepper flakes. Toss together to coat the chicken evenly in the cornstarch and spices.
Heat a large frying pan over medium-high heat and add olive oil and butter.
Add the coated chicken and fry for 7 to 8 minutes until golden brown and fully cooked.
Remove the chicken from the pan, add a drizzle of olive oil, add the veggies, and a sprinkle of salt and black pepper.
Saute for 6 to 7 minutes until softened. Remove the veggies from the pan and set aside.
To the same pan over medium heat, make the sauce. Add soy sauce, oyster sauce, honey, brown sugar, rice vinegar, chipotle adobo paste, minced garlic, and butter. Mix together well and simmer for 2 to 3 minutes.
Add back in the chicken, veggies, and udon noodles.