Wash the potatoes under cold running water.
Peel them if you prefer smoother potatoes.
Cut potatoes into quarter-inch thick slices evenly.
Pat them completely dry with paper towels.
Dry potatoes will get crispier when cooked.
Remove any excess moisture carefully and thoroughly.
Place your skillet on medium-high heat setting.
Add butter and oil together into pan.
Wait until the butter melts and stops foaming.
The pan should be hot but not smoking.
This step is important for crispy potatoes.
Add potato slices in a single flat layer.
Do not overcrowd your pan at all.
Let them cook without moving for 5 minutes.
Flip each slice when golden brown appears.
Cook the other side for 5 more minutes.
The potatoes should be crispy and tender.
Sprinkle salt and pepper over the hot potatoes.
Toss them gently to coat all pieces.
Add fresh chopped parsley on top for color.
Serve immediately while they are still hot.
These potatoes taste best when freshly made.