Boil potatoes to fork tender. I usually cut them up so they cook faster.
When done boiling drain water and mash potatoes. If you have a potato ricer that would be best but just a normal masher is good to. Let your mashed potatoes cool to room temperature.
place of a flat surface and create a well. crack your egg into well and whisk egg while slowly incorporating surrounding potato.
When potato and egg are completely combined add flour. Kneed till it is a workable dough. Much like a pasta dough. You may need more or less flour depending on amount of potatoes used and for dusting your dough and surface.
After kneeding roll your dough into snake like form. No bigger than 1 inch thick. Then cut them about 1 inch wide.
add gnocchi to boiling salted water. You will know they are cooked when they float to the top. This wont take very long.
Lastly, put some oil in a pan and sear till slightly browned. Then add to your S.O.S. and mix! You don't have to sear but I think it firms the gnocchi up a little more.