Cook pasta per package directions (or 1-2 minutes less than instructions for al dente pasta) in salted water. When the pasta has cooked for several minutes, remove 1 cup of pasta water.
Add all ingredients, including ½ cup of the pasta water, to a blender and blend until smooth, scraping down the sides of the blender jar intermittently.
When the pasta has finished cooking, strain but do not rinse it. Instead, return it back to the pot and pour the sauce over top.
Stir until the sauce has thoroughly coated the pasta. If the sauce seems too thick, add some more pasta water. If it seems too thin, heat the pasta over medium heat until it thickens.
Divide pasta into four servings, optionally add garnishes, and serve.
Store leftover pasta in the fridge for 4-5 days or the freezer for up to 3 months.