a large covered pot, bring water with a tablespoon
of salt to a boil. When it boils, add the pasta
and stir well. Cover until it returns to the
boil and boil until al dente.
make the sauce. In a skillet with a lid, large
enough to hold the pasta later, heat the oil
over medium high heat. Add the garlic and cook,
stirring until golden 3 minutes. Add the spinach
and mix well. Add the heavy cream, mix and simmer
until slightly thickened.
1/2 cup of the cooking water, drain the pasta
in a colander. Add the drained pasta to the
sauce and mix well, adding a few tablespoons
of the cooking water if needed to coat the pasta
evenly. Cover and cook 1 minute. Taste for salt.
Mixing with a wooden spoon, add the butter,
cheese, salt and pepper to taste and serve immediately.