Pork with Apple-Curry Sauce

My dad uses this sauce on occasion for pork.

Cubed pork (or use as a sauce to top slices of pork roast)
1 cup milk
2 tsp yellow curry powder
2 Tbsp butter or margarine
2 cups chopped apples (2 medium apples or 1 large apple)
1/3 cup finely-chopped onion
2 Tbsp flour

In a saucepan, cook and stir curry powder in butter for 1 minute. Stir in apples and onion. Cook, covered until apples and onion are tender. Stir in flour. Add milk all at once. Cook and stir over medium heat until thickened and bubbly. Cook and stir 1 to 2 minutes more. Add salt and pepper, if desired. Spoon sauce over slice of roast or add cubed pork until heated. If the sauce gets too thick, warm some apple sauce and add it to the sauce for thinning.

Serve over rice or noodles.