Crock Pot Smothered Pork Chops

Ingredients:
4 bone-in pork chops
1 oz packet onion soup mix
1 14 oz can chicken broth, low sodium
1 10.5 oz can cream of chicken soup, low sodium
1 oz packet dry pork gravy mix
1 tsp garlic powder
To thicken gravy:
3 tbsp cornstarch
3 tbsp cold water