Dulce de Leche

• Whole milk 1030g (36 oz, 1 litre)

  Full-fat milk gives the richest caramel — do not use skimmed milk. Substitute: Semi-skimmed milk — thinner, paler, and less rich.

  How to choose: Fresh whole milk, well within its date; the fresher the milk, the cleaner the flavour.

  How to prepare: Pour into a heavy-based saucepan.

  Required
• Granulated sugar 300g (10.6 oz, 1 1/2 cups)

  Dissolves into the milk and slowly caramelises. Substitute: Caster sugar, same weight — dissolves a little faster.

  How to choose: Plain white granulated sugar; brown sugar darkens the colour and changes the flavour.

  How to prepare: Measure out.

  Required
• Baking soda 1g (0.04 oz, 1/4 tsp)

  Keeps the milk from curdling during the long cook. Substitute: Omit it only if you are willing to stir constantly and accept a higher risk of curdling.

  How to choose: Fresh baking soda, not baking powder.

  How to prepare: Measure out.

  Required
• Vanilla extract 5g (0.2 oz, 1 tsp)

  Stirred in at the end for a warm, rounded flavour. Substitute: 1/2 vanilla pod, split, added with the milk and removed at the end.

  How to choose: Real vanilla extract, not imitation flavouring.

  How to prepare: Measure out.

  Optional

Estimated cost: Low — about $1–2 per serving at home (USD)

info Whole milk and sugar are simmered gently for two hours in an open pot until thick and golden, with no sealed cans involved.

Execution Methodology & Culinary Technique

1. 1

   Dissolve the Sugar

   10 Minutes Medium heat, about 90°C (195°F)

   Pour the milk into a heavy-based saucepan and stir in the sugar over medium heat until it has fully dissolved. Stir in the baking soda — the milk will foam up briefly, which is normal. Keep stirring until the foam settles.

   The baking soda is what stops the milk curdling over a two-hour cook — do not skip it.

   Done when: The sugar is completely dissolved, the milk is hot and steaming, and the foam from the baking soda has settled back down.

2. 2

   Bring to a Gentle Simmer

   30 Minutes Low simmer, about 90°C (194°F)

   Bring the milk just to a bare simmer, then turn the heat down to low so the surface barely trembles. The milk must never boil hard, or it will rise up and spill over. Stir every 5–10 minutes, scraping the bottom and sides of the pot.

   A marble or a small clean plate dropped into the pot rattles when the milk is about to boil over — an old trick that warns you before the mess happens.

   Done when: A gentle simmer with small bubbles breaking the surface; no rolling boil and no skin forming on top.

3. 3

   Simmer and Reduce

   60 Minutes Low simmer, about 90°C (194°F)

   Keep simmering on low, stirring every 10 minutes as the milk slowly reduces and turns from white to pale gold. As it thickens, stir more often — every 3–5 minutes — and scrape the sides down, because the thicker it gets, the faster it can catch and burn.

   Do not walk away for long stretches in the second hour — this is when a dulce de leche goes from perfect to burnt in minutes.

   Done when: The milk has reduced by more than half, turned a pale caramel colour, and coats the spoon when you lift it out.

4. 4

   Finish to a Deep Gold

   20 Minutes Low simmer, about 90°C (194°F)

   In the last 15–20 minutes the mixture darkens to a deep golden brown and thickens noticeably. Stir constantly now, watching for the moment a spoon dragged across the bottom leaves a clear trail that closes slowly behind it. Take the pot off the heat at that point — it thickens further as it cools.

   It is better to stop a minute early than a minute late — an overcooked batch turns grainy and bitter, and there is no way back.

   Done when: Deep golden brown, thick enough that a spoon trail across the bottom stays visible for a second or two before closing.

5. 5

   Strain and Jar

   20 Minutes Cool to room temperature, about 21°C (70°F)

   Stir in the vanilla extract, then pass the dulce de leche through a fine sieve into a clean bowl to catch any small lumps. Let it cool for 20 minutes, then spoon into a clean glass jar and seal. Store in the fridge.

   The sieve is the difference between a good batch and a great one — it catches the tiny milk solids that form during the long cook.

   Done when: Smooth, glossy and thick, with no lumps; it pours slowly from the spoon and holds its shape in the jar.

vital_signs Nutritional Physiology & Benefits

Nutrition

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

Vitamins & minerals: Provides calcium and vitamin B12 from the milk, with small amounts of vitamin A. Nutrition is estimated.

restaurant Food Pairings

What to Eat With

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

warning Digestive Guardrails

What NOT to Combine

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

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

Who Should Eat It

Who Should Eat

• General adultsA spoonful of dulce de leche on toast or in baking is a simple pleasure — keep to the 30 g serving, as it is very sweet and energy-dense.
• ChildrenChildren love it spread thinly on toast or swirled into yoghurt; keep portions small because of the sugar, and watch for milk allergy.
• ElderlySoft, easy to eat and comforting; a thin spread is plenty, and the sugar means small portions are best.
• Pregnant womenMade from milk simmered for two hours, so it is fully cooked and safe; keep to small servings because of the sugar and ask your clinician about any concerns.
• Breastfeeding womenA small spoonful in baking or on toast fits fine; it adds energy, which breastfeeding mothers often need, but keep portions modest.
• AthletesA quick source of energy before or after training — spread it on toast with a banana for fast carbohydrate.
• Weight gainEnergy-dense and easy to eat — a generous spread on toast or in desserts adds calories without much volume.
• Weight lossDelicious but very high in sugar and energy for its weight — stick to the 30 g serving and treat it as a condiment, not a snack on its own.

Health Conditions — Adjust or Avoid

Conditions

• DiabetesVery high in sugar, so a 30 g serving is the maximum sensible portion and it should be an occasional treat; ask your clinician about portions.
• High blood pressureLow in sodium, so salt is not the issue — the concern is the sugar, so keep servings small; ask your clinician about portions.
• Kidney diseaseMilk-based, so it adds potassium and phosphorus; keep to small, occasional servings and ask your clinician.
• GoutSugar-sweetened foods can raise uric acid, so keep this as an occasional small treat; ask your clinician.
• Stomach issuesMilk and sugar together can trouble sensitive stomachs, especially with lactose intolerance — keep to a thin spread; ask your clinician if symptoms persist.
• Cardiovascular diseaseHigh in sugar and saturated fat from the milk, so treat it as an occasional small portion rather than a daily habit; ask your clinician.
• Fatty liverHigh in added sugar, which is best limited — keep to the 30 g serving and only occasionally; ask your clinician.
• Food allergiesContains milk (major allergen). Naturally gluten-free and egg-free as written. Ask your clinician if you are unsure.
• Special therapeutic dietsNaturally gluten-free and vegetarian; not suitable for dairy-free or vegan diets as written. Check any diet plan with your clinician before adapting the recipe.

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

kitchen Storage & Use

Storage & Use

How to store

Store in a clean, sealed glass jar in the fridge; always use a clean spoon to serve it.

In the fridge

2–3 weeks in a sealed glass jar.

In the freezer

Up to 3 months in a freezer-safe container; thaw in the fridge overnight.

How to reheat

Warm gently in a pan of hot water or in short bursts in the microwave, stirring between bursts, until spreadable.

Freezing recommended

Yes, in small portions.

Signs it has spoiled

Sour smell, mould, or a fermented, fizzy taste.