How do I fix oily split garlic pasta?
Pull the pan off the heat, then add a splash of starchy pasta water — about a quarter cup — and toss hard for thirty seconds. The starch binds the oil and water into one glossy, opaque sauce that clings to the noodles. No cream needed; the pasta water alone emulsifies it.
How to do it
- Pull the pan off the heatTake the pan off the burner before you fix anything. Emulsifying over direct heat just splits the sauce again.
- Add a splash of starchy pasta waterLadle in about a quarter cup of the water you cooked the pasta in. Its dissolved starch is what binds oil and water together.
- Toss hard until glossyToss or stir vigorously for around thirty seconds. The sauce turns from greasy and clear to opaque, silky, and clinging.
- Loosen more if it tightensIf the sauce thickens too much or looks dry, add another small splash of pasta water and toss again until it coats every strand.
Questions that come up
What if I already dumped out the pasta water?
Any starchy water works in a pinch: boil a little fresh water and stir in a small pinch of the cooked pasta or a scant half teaspoon of cornstarch to mimic the starch. It won't be quite as clean, but it will still emulsify the oil and pull a split sauce back together.
Does this work for cheese sauces like cacio e pepe too?
Yes. The same off-heat emulsification is what saves cacio e pepe: pull the pan off the heat, add pasta water, and toss the cheese in gradually so it melts into a cream instead of clumping. Direct heat is the usual reason those sauces break.
How much pasta water should I use?
Start with about a quarter cup for two servings, then add more a splash at a time. You want the sauce glossy and clinging, not soupy, so it's easier to add water gradually than to boil off an excess.
Full transcript
Split, greasy garlic pasta? Off the heat, add starchy pasta water. Then toss hard — the starch binds the oil and water into one glossy sauce, no cream. Watch: first the oil beads and slides off the noodles. Tossed off-heat, it turns opaque and silky, clinging to every strand. Save this for weeknight aglio e olio — which pasta split?