Bring a large saucepan of water to a rolling boil. Add enough Sea salt for the water to taste like the sea, then add 170 g spaghetti. Cook according to package directions or until al-dente, around 6 minutes.
Drain the pasta, but reserve some of the pasta water.
Add the drained spaghetti back into the pan and toss with 130 g pesto , 2 stems basil (roughly torn), and a tablespoon or so of your pasta water to loosen it up. There's no need to heat the pan or cook the pesto/pasta any further.
Optionally, serve with 6 cherry tomatoes and 1 tablespoon pumpkin seeds.
Notes
You can, of course, use a different variety of pasta. Linguine, fettuccini, or bucatini are fantastic too!