Peel and cut the potatoes into medium size sticks (about the size of your finger). Add 3 tablespoons of oil to a large skillet and turn the heat on to medium high.
When the oil is hot, add the potatoes and fry on each side for about 3-4 minutes, until they are golden brown. Take the potatoes out and rest them on paper towels to remove excess oil.
Cook on each side for about 3-4 minutes, until golden brown.
In another medium size pan over medium heat, add 1 tablespoon oil. Add the onions and scallions, and cook for 3 minutes. Add the bacon and cook for 3 minutes.
Add the potatoes and butter and cook for 1 minute. Turn off the heat and plate.
Pour the soy sauce over the potatoes, season with freshly ground black pepper and serve.
Notes
Save these potatoes in a storage container and refrigerate for up to 3 days.