Sweet and Sour Chicken

I've had a few requests for this recipe. It's one of our favorites.
Enjoy!

Sweet and Sour Chicken

2 pkgs. Ritz crackers, crushed
1 1/2 T. Parmesan cheese
2 tsp. garlic salt
1 tsp. season salt
Mix these together, put in bowl.
1 (8oz.) container plain yogurt, put in another bowl
1/2 c. melted butter (to drizzle over chicken)
8 chicken breasts, cut in 1/2 and pat dry
Dip chicken pieces in yogurt, then dip in cracker crumbs, set on 13 x 9 inch pan, not touching each other. Now drizzle melted butter over chicken. While baking, make sauce.
Sauce:
1/2 c. ketchup
3/4 c. water
1/2 small can drained crushed pineapple or tidbits, add just before serving
3/4 c. brown sugar
1 T. cornstarch, min in 1/3 c. water to thicken
1/4 c. vinegar (apple cider)
Simmer 30 minutes. Serve over rice. Baking time: 45 minutes. Temp: 350. Serving Size: 6-8.