By Hand: On a clean surface, make a well with the flour. In a measuring cup, mix the eggs, water, oil, and salt. Pour the wet mixture slowly into the flour and mix with 2 fingers until all of the wet mixture is incorporated; do not force the dough to take all of the flour.
By Food Processor: In the bowl of your food processor, combine the flour and salt and pulse 2 to 3 times. In a liquid measuring cup, whisk together the eggs, water, and oil. While pulsing the machine, pour this mixture in a continuous stream and continue running the machine until the dough begins to pull away from the sides of the bowl.
If you are going to use a pasta machine to roll out the dough, you may at this point form the dough into a disk and cover with plastic wrap. Place in the refrigerator for 1 hour to rest. If you going to roll this by hand, you should knead the dough on a floured work surface for 8 to 10 minutes.