Lay chicken thighs in an 8x8 pan, pour chunks of pineapple on top (keep juice from can for later). Preheat oven to 375 degrees.
Mix all other ingredients on list (except cornstarch) using 1 c pineapple juice from the can together in a bowl. Then whisk cornstarch into your sauce mixture until smooth.
Pour pineapple liquid sauce over chicken and cover pan with foil.
Put into oven and bake for approx 35 minutes or until thickest part is 165 degrees F.
Remove foil, baste with liquid, and bake for additional 15 minutes or until thighs are just lightly browned on the top.
Cook rice separately and serve over rice, or with butter noodles.