Instructions for Homemade Teriyaki Sauce:

1. In a small pot, add the soy sauce, water, brown sugar, honey, and minced garlic.

2. Place the pot over medium heat and bring the mixture to a simmer, stirring to dissolve the sugar and prevent it from burning.

3. In a separate bowl, mix the cornstarch and water to create a cornstarch slurry.

4. Slowly pour the cornstarch slurry into the simmering sauce while stirring. Continue to cook and stir until the sauce thickens. Remove from heat and set aside.

Instructions for Chicken Teriyaki:

1. Cut the chicken into small cubes, season with salt and black pepper on both sides.

2. Place the chicken in a zip-lock bag. Pour half of the teriyaki sauce over the chicken and allow the chicken to marinate for at least 15 minutes in the refrigerator.

3. In a large skillet, heat the oil over medium-high heat.

4. Place the marinated chicken in the skillet and cook for about 10-15 minutes, tossing occasionally to ensure even cooking.

5. While cooking, baste the chicken with the reserved teriyaki sauce to create a glossy glaze. Let simmer until sauce is reduced into a thick, golden brown mixture.

6. Once cooked, remove the chicken from the skillet and let it rest for a couple of minutes before serving. Garnish with sesame seeds and green onions.