Aglio e olio

 Thomas G has a YouTube short: aglio e olio my favorite midnight pasta.

Season boiling water and add the pasta.
While the pasta is cooking, add oil to a pan.
Add finely sliced garlic to the pan and let it toast over medium heat with the chili flakes.
Once the pasta is done, drain it and add to the pan with a little bit of pasta water.
Stir to emulsify and then turn off the heat and finely chopped parsley.
Season to taste.

Ingredients.
1 pound pasta
Salt
1/3c extra virgin olive oil
2 tsp garlic
Chili pepper to taste
2 tablespoons parsley

Note, some people in the comments suggest adding a squeeze of lemon or even anchovies (how about capers?).

Another suggestion was to cook it in less water, so the water has a higher starch content.