Prep. Combine the cornstarch, oregano, salt, and pepper in a shallow plate. Pat dry the chicken tenders with paper towels and coat them with the cornstarch mixture.
Pan-fry the chicken tenders. Heat 1 tablespoon butter and 1 tablespoon olive oil in a large skillet set over medium-high heat. Add the chicken tenders to the hot skillet and cook for 5 minutes. Flip over the chicken tenders, add the remaining butter to the skillet, and continue to cook for 4 to 5 more minutes or until the chicken is cooked through.
Make the honey garlic sauce. In the meantime, combine the garlic, honey, soy sauce, white vinegar, and hot chili sauce in a mixing bowl; whisk to combine. If you like more heat, add more hot chili sauce.
Combine. Lower the heat to medium. Add the sauce to the chicken and continue to cook for 2 more minutes or until the sauce starts to thicken. Turn the chicken over to coat with the sauce.
Serve. Remove the honey garlic chicken from the heat and garnish the chicken tenders with parsley and sesame seeds. Drizzle with the pan sauce and serve.