Place the potato slices in a bowl of water. Let stand 15 minutes. Drain, rinse under cold water, and drain again. Pat dry with towels.
Heat enough oil to come 4 inches up the sides of a large deep saucepan to 350 degrees F. Add the potatoes in batches and cook until golden brown, about 4 minutes. Remove from the pan with a slotted spoon and drain on paper towels. Sprinkle with salt and serve hot with the steaks.