The actual cooking time depends on the quality of the meat and the thickness of the slices. If the liquid runs dry before the pork is done, pour in water, a quarter cup at a time. Taste the sauce occasionally too and adjust the seasonings, if needed. You may need to add sugar if the apples you used are on the tart side.There will be very little sauce by the time is dish is cooked. And what little sauce there is should be thick. If that’s what you’re seeing, then, you cooked the dish right. It’s a stew, not a soup, after all.