Place the flour and salt into a stand mixer bowl, and mix
Add the egg and water and use a dough hook to mix
When the dough comes together, knead for 10 minutes
Wrap the dough in cling film and place into the fridge to rest for 30 minutes
While it is resting, rinse the spinach in water and shake the excess water off the leaves
Wilt in a dry frying pan over a medium to high temperature
Remove from the heat and place into a sieve or colander to drain while cooling
When cool, wring the excess liquid out of the leaves and chop finely
Add the the cream cheese, mix to combine and season to taste
Remove the dough from the fridge and divide into 2 pieces
Using flour to dust the dough between laminations, laminate the dough on the thickest setting until it feels smooth
Cut the piece of dough in half after lamination and roll out to number 5 on your pasta machine
Place the rolled out pieces onto a floured surface and continue until all the dough is rolled out
Place 15mls of the filling along the middle of two pieces of dough, leaving spaces in between to form the ravioli
Brush water around the filling and place the other pieces of dough on top
Use the edges of your hands to press down to seal the dough and form the ravioli
Use a 6cm cutter to cut the ravioli out
Bring a large pot of water to the boil
While waiting for it to boil, place the butter into a frying pan and over a low temperature allow it to melt
Salt the water and place the ravioli carefully into the water when it comes back to the boil
Cook for 3 minutes, and while the ravioli are cooking, increase the temperature of the butter and allow it to become nut brown (this should take 2 minutes)
Add the sage leaves and continue to cook
Drain the ravioli and add to the sage butter
Toss to coat and serve immediately, with the pine nuts sprinkled on top