In mixing bowl add potatoes, garlic powder, onion powder, egg.  Mix well

Form into flattened patties about 3/4 inch thick.  These should be soft but thick enough to hold together.  Add either a tbsp or flour or tbsp of milk if your patties need to be thicker or thinner consistency to hold their shape as a patty.

Spread 1/2 flour in low side dish.  Coat each side of patty with flour. 

In frying pan on medium heat olive oil and butter.  Place patties in pan.  Fry on one side until well browned about 10 minutes  Flip over.  Brown and cook on second side until well browned about 10 minutes.  Patties should be slightly firm to touch when cooked through

Serve with butter, salt, pepper and sour cream if desired.