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Overview

Uruguayan Pionono

Pionono Salado; Savoury Pionono; Ham and Egg Sponge Roll

Uruguayan pionono is a savoury rolled sponge cake: a thin, golden sponge baked in minutes, spread with mayonnaise and cream cheese, layered with cooked ham, sliced hard-boiled eggs, Gouda, tomato, lettuce and olives, then rolled up tight and sliced into spirals. It is served cold, straight from the fridge, and it is the slice every Uruguayan holiday table has. One serving is about 132 g (one thick slice).

Pionono is a Río de la Plata classic, shared by Uruguay and Argentina: a thin sponge cake rolled around a savoury filling and sliced into spirals for holiday tables and family gatherings. The same sponge is filled sweet with dulce de leche for dessert, but the savoury version — ham, hard-boiled egg, mayonnaise, cheese, tomato and olives, sometimes with hearts of palm — is the one Uruguayans serve as a cold lunch or party slice. It is a different dish from the Dominican and Puerto Rican pionono, which is a cup of fried plantain filled with meat, and from the sweet piononos of Granada in Spain, which are small syrup-soaked pastries.

Pairs well with: A crisp green salad and a glass of cold white wine or sparkling water with lemon

Provenance

Uruguay flag Uruguay

Río de la Plata Classic

Latin America & Caribbean

Time Dedication

42m

30m prep • 12m cook

Batch Yield

8 Servings

320 kcal per serving

1 serving ≈ 132 g

Technical Skill

Intermediate

Medium (Roll & Fill)

Meal Timing & Digestive Fit

Breakfast

Not Advised

Lunch

Prime Metabolic Fit

Dinner

Ideal Hearty Main

Snack & Tea

Inappropriate

Occasions: Holiday tables, birthdays, family lunches, picnics, party buffets Cost: Low — about $2–3 per serving at home
Sliced savoury pionono rolls filled with ham, mayonnaise, tomato and olives on a plate

Río de la Plata Classic

Photo: Carlosdisogra, CC BY-SA 3.0, via Wikimedia Commons

The Heritage Formulary

Measured Ingredients

Estimated cost: Low — about $2–3 per serving at home (USD)

A good pionono is a tight roll with a clear spiral in every slice, a soft sponge that does not crack, and a filling that holds its shape when cold.

Execution Methodology & Culinary Technique

Step-by-Step Cooking Guide

Active 42m
P

Prep Stage: Boil the Eggs, Then Bake a Sponge That Bends

30 Mins • Prep

Pionono has two jobs and the order matters: boil the eggs first, so they are cool and sliced by the time the sponge is baked, and bake the sponge thin and fast — 10 to 12 minutes at 180°C (350°F) — so it stays soft enough to roll. The trick that makes the roll work is rolling the hot sponge up in its tea towel straight out of the oven, before it has a chance to set stiff; unroll it, fill it, and roll it again. Mix the mayonnaise and cream cheese while the sponge bakes, and lay the ham, cheese, egg, tomato, lettuce and olives out ready to place in rows.

Maestro Tip: Have the tea towel dusted with a little sugar and the filling laid out before the sponge goes in the oven — a sponge waits for no one, and a cold sponge cracks when you roll it.

  1. 1

    Boil the Eggs

    10 minutes Boiling water, 100°C (212°F)

    Put 2 eggs in a small saucepan, cover with cold water and bring to a rolling boil. Boil for 10 minutes, then drain and run under cold water until cool enough to handle. Peel and slice into even rounds.

    Start the eggs in cold water so the shells do not crack; cold water after boiling stops the yolks turning grey.

    Done when: Firm whites, bright yellow yolks, no grey ring.

  2. 2

    Bake the Sponge

    12 minutes 180°C (350°F)

    Heat the oven to 180°C (350°F) and line a 25 x 35 cm baking tray with parchment paper. Whisk the egg whites with a pinch of salt until soft peaks form, then whisk in half the sugar. In a second bowl, whisk the yolks with the remaining sugar, honey and vanilla until pale and thick, then fold in the sifted flour. Fold the whites in gently in two batches. Spread the batter evenly over the tray, about 1 cm thick, and bake for 10 to 12 minutes, until golden and springy to the touch.

    Fold, do not stir: stirring knocks the air out and the sponge comes out flat and stiff.

    Done when: Golden, springy sponge that bounces back when pressed.

  3. 3

    Roll and Cool the Sponge

    5 minutes Warm, about 60°C (140°F)

    Lay a clean tea towel on the bench and dust it lightly with sugar. Turn the hot sponge out onto the towel, peel off the parchment, and roll the sponge up inside the towel, starting from a short end. Leave it rolled for 5 minutes, then unroll it gently and lay it flat, sponge side up.

    Roll while it is hot — this teaches the sponge its curl, so it rolls again without cracking when it is filled.

    Done when: A flat sponge with a gentle curl at one end, no cracks.

  4. 4

    Mix the Filling

    5 minutes Room temperature, about 20°C (68°F)

    Beat the softened cream cheese with the mayonnaise until completely smooth, and season with a pinch of salt and pepper. Taste it: it should be creamy and lightly tangy, not sharp.

    Softened cream cheese blends smooth; cold cream cheese leaves lumps in the spread.

    Done when: Smooth, spreadable, lightly tangy.

  5. 5

    Fill, Roll and Slice

    10 minutes Room temperature, about 20°C (68°F)

    Spread the mayonnaise mix evenly over the sponge, leaving a 2 cm border bare along the far long edge. Lay the ham slices over it, then the Gouda, then a row of egg rounds along one short end. Scatter the tomato halves, lettuce strips, olives and hearts of palm evenly over the rest. Roll the sponge up tightly from the egg end, pressing gently as you go, and set it seam side down. Slice into 8 thick rounds with a sharp, serrated knife.

    Roll from the egg end so the eggs sit in the centre of the spiral, and wipe the knife between cuts for clean slices.

    Done when: A tight roll with a clear spiral of ham, egg and vegetables in every slice.

  6. 6

    Chill and Serve

    30 minutes chilling Fridge, 4°C (40°F)

    Wrap the sliced roll (or the whole roll before slicing) in cling film and chill for at least 30 minutes. The chill is not counted in the 42 minutes of cooking time. Serve cold, straight from the fridge, on a platter with salad. Chilling firms the filling so the slices hold their shape.

    Chill before serving: a warm pionono sags and the slices slide apart.

    Done when: Cold, firm slices with a clean spiral, ready to serve.

Finishing Touches & Plating

Serve the pionono cold, in thick slices that show the spiral, with a crisp green salad on the side. A glass of cold white wine or sparkling water with lemon suits it perfectly.

Nutritional Physiology & Benefits

Nutrition

Energy

320

kcal / serving

Protein

14g

Complete AA

Carbs

15g

Complex

Fats

23g

Healthy

Per serving (8 servings · 1 serving ≈ 132 g)
Energy320 kcal
Protein14 g
Carbohydrates15 g
Fat23 g
Fibre0.7 g
Sugar8.0 g
Sodium713 mg
Per 100g
Energy242 kcal
Protein10.3 g
Carbohydrates11.1 g
Fat17.2 g
Fibre0.5 g
Sugar6.1 g
Sodium540 mg

Nutrition values are estimated — calculated from USDA FoodData Central values for the listed ingredients.

Vitamins & minerals: Vitamin B12 and vitamin A (eggs and cheese), calcium (cheese and eggs), vitamin C (tomato and lettuce).

Real Protein in Every Slice

Ham, eggs and cheese give each 132 g slice about 13 g of protein, so this is a lunch that keeps you full, not just a pretty spiral.

Vegetables in the Roll

Tomato, lettuce, olives and hearts of palm are rolled right into the filling, so every slice carries fresh vegetables along with the ham and egg.

Made Ahead, Served Cold

Pionono is baked, filled and chilled in advance and served cold, so it is ready before guests arrive and there is nothing to cook at the last minute.

Food Pairings

What to Eat With

To optimize nutrient absorption and elevate the sensory depth, pair with these authentic accompaniments:

Vegetables

Crisp Green Salad

A simple salad with a sharp vinaigrette cuts through the creamy mayonnaise filling and keeps the plate fresh.

Drinks

Cold White Wine

A dry white wine matches the salty ham and creamy filling, and it is the classic drink with a Uruguayan holiday table.

Sparkling Water with Lemon

Cold sparkling water with lemon cleanses the palate between slices and suits a cold, party-style lunch.

Full Menus

Pionono, Salad and Wine

Sliced pionono as the centrepiece, green salad alongside, wine to finish — a light, cold lunch that feeds a crowd with no last-minute cooking.

Complete menu

Serve Uruguayan Pionono cold as the centrepiece of a light lunch with a crisp green salad and cold white wine; it also works as a party buffet slice with other cold dishes.

Digestive Guardrails

What NOT to Combine

To prevent digestive distress, sluggishness, or palate clash, avoid pairing the dish with these elements:

Leaving It Out in the Heat

Pionono is filled with mayonnaise, eggs and ham, so it must stay chilled and should not sit out at room temperature for more than 2 hours — the filling spoils quickly in the heat. This is general information, not medical advice.

A Second Helping After a Rich Meal

Each slice carries about 320 kcal and 713 mg of sodium, so one or two slices are a lunch and more is a lot of salt and fat at once. This is general information, not medical advice.

General information only, not medical advice — consult a doctor for personal dietary decisions.

Who Should Eat It

Who Should Eat

  • General adultsA satisfying cold lunch — one or two slices with salad is a proper portion.
  • ChildrenChildren love the spiral slices; cut them into smaller pieces for small children and keep the olives aside if they dislike them.
  • ElderlySoft and easy to chew, served cold; keep portions modest because the filling is salty.
  • Pregnant womenThe eggs are cooked through and the ham is cooked, but the mayonnaise must be made with pasteurised eggs and the roll kept chilled; keep to one or two slices and ask your clinician about your sodium target.
  • Breastfeeding womenA filling, protein-rich lunch; enjoy a couple of slices and keep the rest of the day's salt in mind.
  • AthletesUseful protein and energy after training, about 13 g of protein per slice — but the salt is high, so drink water with it.
  • Weight gainEnergy-dense and easy to eat, so two slices with salad are a pleasant way to add calories.
  • Weight lossAt about 320 kcal a slice this is a lunch to enjoy in one or two slices with plenty of salad, not a snack to graze on.

Health Conditions — Adjust or Avoid

Conditions

  • DiabetesModerate in carbohydrate (about 14 g per slice), so keep to one or two slices and ask your clinician about your carbohydrate target.
  • High blood pressureHigh in sodium at about 713 mg per serving, mostly from the ham, cheese and olives; enjoy in one or two slices and ask your clinician about your daily sodium target.
  • Kidney diseaseContains dairy, eggs and ham, all sources of potassium, phosphorus and sodium; keep portions small and ask your clinician about your limits.
  • GoutHam is a purine source, so keep portions modest; ask your clinician if you have frequent flares.
  • Stomach issuesSoft and gentle when cold, but the mayonnaise is rich, so a large portion can feel heavy; ask your clinician if symptoms persist.
  • Cardiovascular diseaseHigh in saturated fat and sodium from the mayonnaise, cheese and ham; enjoy in small portions and ask your clinician about your diet.
  • Fatty liverHigh in saturated fat from the mayonnaise and cheese; not a good choice for fatty liver — ask your clinician about your overall diet.
  • Food allergiesContains egg, milk (dairy), gluten (wheat) and pork; the recipe is nut-free as written, but check your own triggers.
  • Special therapeutic dietsHigh in sodium and dairy and not gluten-free; there is no simple swap that keeps it a pionono — ask your clinician if you follow a prescribed diet.

If you have a medical condition, consult your doctor before changing your diet.

Storage & Use

Storage & Use

How to store
Wrap the roll or the slices tightly in cling film and refrigerate.
In the fridge
Keeps 2 days in the fridge at 4°C (40°F) or below.
In the freezer
Not recommended — freezing ruins the mayonnaise and the sponge turns soggy.
How to reheat
Do not reheat; pionono is served cold, straight from the fridge.
Freezing recommended
No — the filling and the sponge do not survive freezing.
Signs it has spoiled
Sour smell, slimy ham or lettuce, or any mould on the sponge.

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