Peel potatoes and add them to a large pot of salted water. Bring the water to a boil and cook for 20-25 minutes, or until a fork can easily pierce the potatoes. Drain and set aside until cool enough to handle but still warm.
In a bowl, mash the potatoes until all lumps are gone. Add 1g of salt then sieve 80g of flour onto the mashed potatoes.
Using your hands, gently mix the flour into the potatoes until evenly distributed and obtaining a smooth dough. Roll it into a large ball.
Put some flour onto a clean surface and turn out the dough onto it, keeping some extra flour close by in case you need it. Flatten the dough ball and slice into equal parts. Roll out 1 part into a long rope, about 2cm (about 1 inch) wide. Slice the rope into 3cm (about 1.5 inches) squares and set aside on a lightly floured surface. Repeat with the remaining dough.
Roll out 1 part into a long rope, about 2cm (about 1 inch) wide. Slice the rope into 3cm (about 1.5 inches) squares and set aside on a lightly floured surface. Repeat with the remaining dough.
If desired, place a fork on your work surface and slide each gnocchi square from the base of the fork tines to the top so they have a nice decorative shape.
Bring a large pot of salted water to a boil and add the gnocchi in small batches, stirring gently once or twice to ensure they are not sticking. Boil until they float to the surface; after another 15-30 seconds in the water, remove them with a slotted spoon or even a small sieve and place them in a strainer while you cook the next batch1.
In a pan over medium heat, drizzle oil and fry them. Once they are lightly golden, add your favorite sauce and serve. Enjoy!