Step 1: Marinate the Chicken
In a bowl, whisk together the soy sauce, honey, rice vinegar, garlic, ginger, and sesame oil.
Add the chicken pieces and toss to coat them evenly.
Let the chicken marinate for at least 30 minutes or refrigerate for up to 2 hours for extra flavor.

Step 2: Cook the Chicken
Heat a little oil in a large skillet or wok over medium-high heat.
Add the marinated chicken, reserving the marinade for later.
Cook for 5-7 minutes until the chicken is browned and cooked through.

Step 3: Prepare the Teriyaki Sauce
While the chicken cooks, pour the reserved marinade and pineapple chunks into a small saucepan.
Bring it to a simmer over medium heat to start thickening the flavors.

Step 4: Thicken the Sauce
Stir the cornstarch and water mixture into the simmering sauce.
Keep stirring until the sauce thickens into a glossy coating, about 2-3 minutes.
Remove the sauce from heat once it reaches the perfect texture.

Step 5: Combine Everything
Pour the thickened teriyaki sauce over the cooked chicken in the skillet.
Mix well to coat every piece of chicken with the sweet, sticky sauce.

Step 6: Serve and Garnish
Serve the pineapple teriyaki chicken over brown rice or quinoa for a wholesome base.
Top each bowl with sesame seeds, sliced green onions, and a few extra pineapple chunks if desired.
Add a squeeze of fresh lime for a pop of extra freshness.