Shallow frying is an oil-based cooking technique. It is typically used to prepare portion-sized cuts of meat and fish, and patties such as fritters. Shallow frying can also be used to cook vegetables. Shallow-fried foods are often battered. It is a high-heat process, promoting browning and, in some cases, a Maillard reaction.
+ Fill a pan with oil + Put in the sliced potatoes (with the heat off) + Turn the heat on to high, and cook for 15-20 minutes. + Put french fries on a paper towel, and salt
The french fries will be perfectly cooked in the inside, and brown on the outside.
Here are some links talking about it: http://dinersjournal.blogs.nytimes.com/2010/03/19/an-easy-way-to-make-french-fries/