| Pasta, portion, and boiling | 1.5mm, 70g, 5 min | 1.4mm, 100g, no separate boiling | 1.7mm, 70g, package time | 1.4mm, 70g | spaghetti, 2–3 min under package time | 300–500g for 4, package time |
| Salt in the pasta water | not stated | 2 pinches (+1 tsp bouillon) | 1.5% (30g in 2L) | not stated | generously (no percentage given) | rock salt (amount not given) |
| Water volume | not stated | 350cc (one pan) | 2L | not stated | large pot | about 5L |
| Amount of oil | as needed (amount unspecified) | 1 tbsp + 1 tbsp to finish | 2 tbsp (+1 tbsp for the tomato sauce) | 50cc EVOO (a convenient amount to make) | plenty (no amount given) | plenty (no amount given) |
| Garlic | sliced, 1 clove, medium-low 7 min | minced, 2 cloves, from cold oil | 1 clove, high heat into chips | crushed, 3 cloves, room-temp oil to high heat, until a skewer passes through | cored and chopped, medium heat 1–2 min | chopped, 2 cloves, low heat 5 min |
| Chili | 2, from the start | 1, sliced, added after garlic colors | 1, until black | roughly chopped, 20 sec off the heat | fresh or dried, added with the garlic | 2, fresh and chopped, added with the garlic |
| Emulsification method | add pasta water with 10 sec of boil time left | simmered down to thicken naturally | off heat with pasta water, noodles added after | swirl with 3–4 tbsp pasta water | a ladle of pasta water, noodles finished over medium-high | pasta water added bit by bit, tossed up with tongs |
| Heat level | medium-low, longer cook | high → low → boil → reduce | high, short time | high → low, chili added off heat | medium → off → medium-high | low |
| Finishing | parsley, finishing oil | olive oil, salt, soy sauce (optional) | serve with concentrated tomato sauce | plate quickly | drizzle the pan's oil over, serve at once | parsley, Parmigiano Reggiano optional |
| Total time | about 25 min | about 15 min | about 20 min | not stated | not stated | 15 min |
| Source check | Partly unverified | Source verified | Partly unverified | Partly unverified | Source verified | Source verified |