Place the flour in a pile on a cutting board and create a well in the middle. Crack the eggs in the well, and using a fork, gently whisk the flour and eggs, gradually pulling flour in to the eggs.
Lightly flour a new board - or clean and dry your current one - and overturn the blended flour and eggs on to it. Gently knead about 10 minutes until it becomes consistent in colour and texture. Don't be afraid to add a bit of water if the mix is too crumbly. Once complete set the dough on a clean surface, cover with a bowl, and leave to sit for 30 minutes.
After 30 minutes lightly flour a new surface, pull off an egg-sized ball of dough, and begin rolling it out. Turn a quarter turn consistently as your roll. You're done when you can see your hand through it. Most people leave it too thick, so be sure it's thin enough to read a magazine through!
Lay the dough over a ravioli mold and lightly press into place. Fill with your selected filling (in this case, cooked Italian sausage and ricotta).
Place another layer of dough on top, then using your rolling pin, roll over top until it both seals and cuts.
Remove the ravioli and carefully remove any loose edges or hangers-on until you have complete, perfect little squares. Place in salted, boiling water.
Have a pan with melted, unsalted butter at the ready - fresh egg pasta cooks in well under a minute. Once it rises to the surface of the boiling water remove with a slotted spoon and place in the buttered pan. Add a touch of the salted pasta water, toss, and serve.