Helado de Paila — Ecuador's hand-spun copper-pan ice

i. Origin & history

The word paila means a broad, shallow pan, and in Ecuador it usually refers to a heavy copper one — the same vessel used for making dulce de leche and other cooked sweets. Helado de paila is ice cream made in that pan, without electricity, using nothing but ice, salt, fruit, sugar and a great deal of arm work.

The tradition is most strongly tied to Ibarra, the 'white city' in the province of Imbabura, north of Quito. The story told there credits Rosalía Suárez, who is said to have begun making and selling helados de paila in the town in the late nineteenth century; her family's ice-cream shop still operates and is regularly described as the oldest in the country. Whether or not she was the first, she is the figure most associated with turning a household technique into Ibarra's best-known product.

Before refrigeration the essential ingredient was ice carried down from the glaciers and snowfields of nearby Andean peaks. Hieleros, ice cutters, wrapped blocks in straw (paja de páramo) to insulate them for the journey, and straw is still packed around the paila's ice bed in traditional shops. Ice harvesting of this kind survives today only as a heritage craft, most famously on Chimborazo.

Today helado de paila is sold across Ecuador, especially in Imbabura and around Quito, scooped into cones or glasses from pans that are spun in full view of customers. It is mostly a helado de agua — a water-based fruit ice — but cream-based flavours made with milk and sometimes whipped egg white are common too. If you are wondering what it is called in English, there is no settled translation: 'pan ice cream' and 'Ecuadorian copper-pan sorbet' are the descriptions most often used.

ii. How salt and a spinning pan freeze fruit juice

Ice alone cannot freeze a sorbet, because ice sits at 0 °C and sweetened fruit juice does not freeze until a few degrees below that — sugar lowers the freezing point. Salt solves the problem. Scattered over crushed ice, it dissolves into the thin film of meltwater and forms brine, which can stay liquid at well below −10 °C. That brine pulls heat out of the copper and the juice inside it far faster than plain ice could.

Copper is used because it is the best heat conductor in ordinary kitchen use, so the whole wall of the pan becomes cold almost immediately. As the pan is turned on its bed of ice, a thin layer of juice freezes onto the cold copper. The paddle scrapes that layer away and folds it back into the liquid, and a fresh film of juice meets the cold metal. Repeated for twenty minutes or so, this builds up a mass of very small ice crystals rather than a few large ones.

Crystal size is what separates helado de paila from a frozen ice lolly. Constant scraping and stirring keep the crystals tiny, so the ice is soft, smooth and scoopable even though it contains no cream, eggs or stabilisers. The motion also beats in a little air. If the pan is left still, crystals grow and fuse and the result is hard and icy.

Sugar is the other control. Too little and the mixture freezes rock-hard; too much and it never sets beyond slush. A fruit juice of roughly 20–25 per cent sugar is the sweet spot, which is why recipes adjust for each fruit — sour naranjilla or mora needs more sugar than ripe guanábana.

iii. Ingredients

Makes 6 servings · scroll the side panel to adjust

• 500 g fresh or frozen fruit pulp (mora, naranjilla, guanábana, taxo or passion fruit)
• 180 g sugar
• 300 ml water
• 1 tbsp lime juice
• 1 egg white, optional, for a fluffier texture
• ¼ tsp salt, for the fruit mixture

The authentic flavours are Andean: mora de Castilla (Andean blackberry), sour-orange naranjilla (lulo), floral taxo (banana passion fruit) and creamy guanábana (soursop). Outside Ecuador, frozen pulps sold in Latin American shops are the best route; blackberries, passion fruit or mango are good substitutes. The pinch of salt in the fruit sharpens flavour. A beaten egg white, stirred in once the mixture starts to thicken, is a common shop addition that makes the ice lighter and whiter. For the ice bath you will also need about 3 kg crushed ice and 500 g coarse rock salt, plus a wide, thin metal bowl — copper if you have one, otherwise stainless steel — sitting in a larger bowl that holds the ice and salt.

iv. Method

1. Warm the water and sugar until the sugar dissolves, then cool. Blend the fruit pulp with the syrup, lime juice and salt, and strain through a fine sieve to remove seeds. Chill in the fridge for at least an hour; the colder it starts, the faster it freezes.
2. Fill a large basin with crushed ice, scattering the rock salt through it in layers. Nest a wide copper or stainless-steel bowl in the ice so that the ice comes well up its sides. Wrap the outer basin in a towel to insulate it.
3. Leave the empty inner bowl to chill for 5 minutes until frost forms on the inside, then pour in the fruit mixture.
4. Turn the bowl in the ice with one hand while scraping the sides and base with a wooden spatula or paddle with the other, lifting the frozen film from the metal and folding it into the centre. Keep going without stopping.
5. After 10–15 minutes the mixture will turn slushy. If using the egg white, whisk it to soft peaks and fold it in now. Keep turning and scraping, adding more ice and a handful of salt around the bowl as the bath melts.
6. After 20–30 minutes in total, the ice will be thick, pale, matt and holding soft peaks, like a just-churned sorbet. Scoop immediately into chilled glasses or cones.

v. Tips & common mistakes

• Be generous with the salt. Ice without enough salt stays at 0 °C and the fruit mixture will never set. Roughly one part rock salt to six parts ice by weight gives a cold enough brine.
• Never stop scraping. The moment you leave the pan still, crystals grow on the walls into a hard, icy shell. Consistent motion is what makes the texture smooth.
• Keep salt out of the ice cream. Rock salt splashes easily. Keep the rim of the inner bowl well above the ice line and wipe the outside before scooping.
• Taste the sweetness before freezing. The cold dulls sweetness, so the base should taste slightly too sweet at fridge temperature. If it tastes balanced warm, it will taste thin frozen.
• Use a thin bowl, not a heavy one. Thick glass or ceramic insulates the mixture from the ice and the freezing stalls; a thin metal bowl works almost as well as copper.
• Serve straight from the pan. Helado de paila is at its best the moment it sets. Stored in a freezer it hardens and loses the soft, fresh texture that defines it.

vi. Variations

Ibarra shops offer dozens of flavours. Beyond mora and naranjilla, look for taxo, guanábana, maracuyá, tamarind, tree tomato (tomate de árbol), coconut and chocolate. Helado de paila de leche is made with milk instead of water, giving a creamier result closer to an ice milk. A popular way of eating it in Ibarra is alongside arrope de mora, a thick blackberry syrup, or with the town's other famous sweets, nogadas (walnut fudge) and bocadillos.

Close relatives elsewhere in Latin America include the water ices sold as helado de agua and the fruit ice pops of Mexico, paletas. The scraping technique also has a European cousin in Sicilian granita, which is deliberately left coarser.

vii. Serving & storage

In Ecuador helado de paila is a street and shop treat, served in a cone or a small glass, often two flavours side by side, and eaten on warm afternoons in town squares. It is lighter than dairy ice cream and works well after a heavy meal, or as a palate-cleansing dessert alongside fresh fruit.

It is meant to be eaten fresh. If you must keep it, pack it into a chilled container and freeze for no more than a few hours, then let it soften in the fridge for 10 minutes before serving. After a day in the freezer it turns hard and crystalline; it can be revived by breaking it up and spinning it briefly over ice and salt again, or by blitzing it in a food processor.

ix. More from Latin American

• Helado de Agua — Latin American water ice
• Paletas — Mexican fruit ice pops
• Cocadas — chewy coconut sweets
• Chirimoya Alegre — Chilean custard apple and orange
• Granita — Sicilian crushed-ice dessert
• Raspberry Sorbet — bright berry sorbet