A shallow bowl of spaghetti glossy with olive oil and flecked with parsley and lemon zest, a small spoon pouring amber colatura over the top

Spaghetti with Colatura, the Christmas Eve Pasta of Cetara

September 28, 2026

On Christmas Eve in Cetara, a fishing town on the Amalfi coast, the spaghetti is dressed with a clear amber liquid that has been seeping out of salted anchovies since the spring. That liquid is colatura di alici. The European specification that protects its name records that "according to a well-established tradition" it is the basis of the Christmas Eve celebrations, used to dress spaghetti or linguine. The Campania region's agriculture office puts it more plainly: in Cetara it is the traditional dressing for gli spaghetti delle vigilie, the spaghetti of the holiday eves.

This version adds only olive oil, a clove or two of garlic and some parsley. On any other night of the year it is one of the fastest good dinners a cupboard can produce, and the technique is mostly timing and a little arithmetic. The colatura goes on last, after the pan has left the burner. Because the sauce is legally at least a fifth salt, the pasta water gets only a third of its usual salt. Otherwise the bowl turns briny.

A sauce that keeps the fishing calendar

Protected Colatura di Alici di Cetara starts with Engraulis encrasicolus caught within twelve miles of the coast of the province of Salerno. The producers' consortium, which publishes the specification, puts the season from the end of March to the middle of July. The fish are beheaded and gutted by hand as soon as they are landed and given a first salting. Then they are packed into a small wooden barrel called a terzigno, in alternating layers of anchovy and sea salt. A wooden disc goes on top, and weights go on the disc. Campania's regional food-safety observatory puts those weights at around 50 kilos to begin with, reduced to 15 or 20 as the fish mature.

As the weights press the fish down, liquid gathers in the barrel. The Campania region describes four or five months of exposure to direct sunlight. The observatory gives four to six months of maturation, depending on the size of the fish and the temperature they sit in. At the end the liquid is filtered through linen cloths, which the Campania region calls cappucci, and bottled. The specification allows only clear glass, which lets anyone buying it see the amber color it requires, "tending to brown mahogany."

On a calendar, the tradition makes sense. Anchovies packed in April, May or June, plus four to six months under weight, are ready somewhere between late October and December. The Campania region dates the final phase to the end of October and the beginning of November. The consortium's own history says the fish reached full maturity "in the first days of December." Either way, the new colatura is ready just before the vigil. Seen that way, the Christmas Eve spaghetti is what the town ate when the year's colatura came out of the barrel. The observatory adds that at Christmas the colatura used to be exchanged between Cetara's families to dress the Christmas Eve spaghetti.

Garum, the monks, and what the record shows

The specification, the Campania region and the consortium all trace colatura back to Rome. The Romans kept several fish sauces, garum chief among them, made by letting fish break down in salt. Robert I. Curtis, writing in The American Journal of Clinical Nutrition, says the breakdown is driven mostly by the fish's own enzymes. He adds that the Romans made fish sauce "in the same way and with the same resources" as the fish-sauce producers of Southeast Asia today. The Campania region calls colatura the heir of garum. The specification calls it a descendant.

Heir is a fair word, with one difference in the barrel. Pliny describes garum as made from fish guts and other parts that would otherwise be thrown away, left to macerate in salt. Curtis describes it as made from small whole fish or innards. Colatura takes the opposite approach: the heads and guts come off before the anchovies ever meet the salt. The principle is the same and so is the coast, but the raw material is different.

How Cetara got from one sauce to the other is a legend, and a good one. The consortium's version: in the second half of the thirteenth century, Cistercian monks at the canonry of San Pietro a Tuczolo, on a hill near Amalfi, salted anchovies in barrels whose staves had come loose with age. The barrels were too leaky to hold the monastery's wine, and the monks found that the liquid seeping between the boards was worth keeping. Campania's food-safety observatory tells the same story. The consortium hedges its own date with a "probably," and the qualifier is earned. This is an origin story handed down, not a documented event. The consortium also notes that garum was used on this coast until colatura displaced it. Tell the story the way Cetara tells it, with the "probably" left in.

The anchovy guide covers the fish itself. The fuller story of the bottle is the subject of Colatura di Alici: The Complete Guide.

The salt budget

The specification sets the numbers that shape this recipe: at least 8 g of protein and at least 20 g of salt in every 100 g of colatura. The salt floor means every spoonful carries a known minimum of salt. The table counts a milliliter as a gram, so its figures are minimums. A liquid that is a fifth salt weighs a little more than water, and the true amounts run slightly higher.

Colatura	Salt it carries, at least	In this recipe
1 teaspoon (5 ml)	1 g	The right step for correcting at the plate
1 tablespoon (15 ml)	3 g	A real share of one serving's seasoning
3 tablespoons (45 ml)	9 g	The full dose, three-quarters of the salt in the pot
4 tablespoons (60 ml)	12 g	The upper end, as much salt as the whole pot of water

Four liters of water salted at the usual one percent holds 40 g of salt. This recipe uses 12. The spaghetti still picks up some seasoning as it cooks, and the starchy water saved for the toss tastes faintly of the sea. The nine grams in the colatura land directly on the finished strands, which is where the tongue meets them first. Fully salted water plus a full dose of colatura is the easiest way to ruin this dish.

Ingredients, for four

400 g (14 oz) dried spaghetti, such as Gentile spaghetti (shop Gentile spaghetti). Linguine works too, and the specification names it alongside spaghetti; try Rustichella d'Abruzzo linguine (shop Rustichella d'Abruzzo linguine). A bronze-die pasta, with its rougher surface, tends to hold an oil dressing better than a slick one
90 ml (6 tablespoons) extra virgin olive oil, such as the Capezzana (shop Capezzana), plus more to finish
2 garlic cloves, sliced thin and evenly
3 tablespoons (45 ml) colatura di alici, such as IASA colatura (shop IASA colatura), plus the bottle at the table
1/4 to 1/2 teaspoon chile flakes, such as Burlap & Barrel Silk Chili (shop Burlap & Barrel Silk Chili) (optional)
A small handful of flat-leaf parsley, finely chopped
12 g fine sea salt for 4 liters (about 4 quarts) of pasta water
Optional: the finely grated zest of half a lemon; 3 tablespoons dried breadcrumbs toasted in 1 tablespoon olive oil until golden

Method

Salt the water lightly. Bring 4 liters of water to a full rolling boil and add only 12 g of fine sea salt. It will taste underseasoned. It should, because the colatura brings the rest.
Start the pasta. Drop the spaghetti, stir for the first minute so the strands do not glue together, and set a timer for two minutes under the package time.
Warm the garlic. Put the oil and sliced garlic into a wide skillet together, cold, and set it over medium-low heat. Swirl now and then for four to five minutes. The garlic goes limp, then translucent, then barely gold at the edges. Stop there. Brown garlic tastes bitter, and a dish this bare has nothing to hide it. Add the chile, give it ten seconds, and pull the pan off the heat.
Save the water and drain early. Scoop out 1 1/2 cups of the cooking water, then drain the pasta while a bitten strand still shows a thin white thread at the center. It finishes in the pan.
Toss. Return the skillet to medium heat, add the pasta and half a cup of the cooking water, and toss hard with tongs for a minute or two, adding more water a splash at a time. Watch the oil and water. They start out separate and slick, go cloudy and pale, and then turn glossy, clinging to each strand with almost nothing pooled underneath. The reasoning behind that change is in How to Cook Dried Pasta Properly.
Dress it off the heat. Take the pan off the burner and wait a few seconds for the sizzling to stop. Add the colatura and parsley and toss for about thirty seconds, loosening with a splash of water if the pasta tightens. Taste a strand. If it wants more, add colatura a teaspoon at a time, never salt from the box.
Serve at once in warm bowls. Add a thread of raw oil, plus the lemon zest and breadcrumbs if using them, and put the bottle on the table for anyone who wants a few more drops. The pasta tightens as it cools, so don't let it sit.

When it goes wrong

Symptom	Likely cause	Fix
Briny, thirst-making	Fully salted pasta water plus the full dose of colatura	Now: more oil and a squeeze of lemon. Next time: a third of the salt in the water, and after the first two tablespoons add colatura by the teaspoon
Sharp, fishy smell	The colatura went into a hot pan and boiled	Add it last, off the heat, and toss only long enough to coat
Oil pooling in the bowl	Too little water or too little tossing, or the pasta was rinsed	Toss harder over the heat with more cooking water before the colatura goes in; never rinse
Bitter	The garlic browned	Start it in cold oil and pull the pan as soon as the edges turn pale gold
Flat	Too little colatura, or nothing bright at the end	Another teaspoon of colatura in the bowl, then the lemon zest

In Denver

According to the high-altitude guides from the New Mexico State University and Colorado State University extensions, water at around 5,000 feet boils at 202 to 203°F. That is about ten degrees below its boiling point at sea level. Both guides say food cooked in boiling water takes longer at that height. Start tasting at two minutes under the package time as usual, but the spaghetti may need a minute or two beyond it. Trust the white thread in a bitten strand over the clock. Colorado State adds that low humidity at elevation makes moisture evaporate faster during cooking. That can show up during the toss, when the pan dries out sooner than a sea-level recipe expects. Save the full 1 1/2 cups of water and expect to use more of it.

Around the table

Spaghetti or linguine. The specification names both, and either is right. The garlic. Two sliced cloves give a clear but quiet note. For less, warm two crushed cloves in the oil and lift them out before the pasta goes in. Breadcrumbs toasted in oil add crunch, the one thing the dish lacks. The broccoli of Christmas. The Campania region lists i broccoli di Natale and other vegetables among colatura's traditional uses, along with bruschetta. For a fuller supper, drop a handful of broccoli rabe or chopped broccoli into the pasta pot for the last three minutes and drain it with the spaghetti. Without colatura. Two or three anchovy fillets melted into the garlic oil get partway there. That version is spaghetti aglio e olio with anchovy and chile. Colatura does the same job more cleanly, with nothing to dissolve.

The colatura, the pasta, the olive oil and the chile flakes are at 263 Josephine Street in Cherry Creek, Denver, and ship nationwide from theambrosianpantry.com, alongside the rest of the pasta and olive oils.