Set a pot of water over high heat.
While waiting for the water to boil, peel and chop the potatoes.
When the water is boiling carefully add the potatoes and cook for 10-12 minutes until they are fork tender.
Drain the potatoes and mash them.
Put them into a pile on the counter and then make a divot in the center, leaving some potato at the bottom.
Crack the egg into the divot and incorporate into the mashed potatoes.
Slowly add in a bit of flour at a time and knead until it is all fully incorporated.
Roll the dough into a ball and then cut into quarters.
Dust the counter with a bit of flour and then roll each quarter into a long "sausage".
Cut the "sausage" into 1" pieces.
If you are using the fork method, then roll each piece down the back of the fork. If you would ratheruse the divot method, then poke your finger into the center of each piece.
Set another pot of water to boil on the stove.
Once boiling, carefully add the gnocchi and cook for 30 seconds to 1 minute. The gnocchi are cooked when they float.
Remove from the water and serve with your favourite sauce.