Cajeta / Dulce de Leche (Milk to Sugar Caramel)

8

Whole goat or cow milk — Fat content matters: full-fat milk gives richest body; goat milk adds slight tang and faster browning

1

Granulated white sugar — Refined white sugar preferred; piloncillo can substitute for deeper molasses notes

0.0025 (¼ tsp per liter of milk)

Baking soda (bicarbonate of soda) — Neutralizes lactic acid, raises pH for faster, more uniform browning; omit and the caramel turns gray-tinged

1 stick per liter

Cinnamon stick (optional) — Traditional in Mexican cajeta; remove before jarring

1 tsp per liter

Vanilla extract (optional) — Added off heat in the final minutes

Combine cold milk, sugar, and baking soda in a wide, heavy-bottomed pot (copper or stainless; avoid aluminum which reacts with soda). Stir over medium heat until sugar dissolves and mixture reaches a simmer. Reduce to a gentle, steady simmer — it must bubble but never boil aggressively or it scorches and seizes. Stir frequently with a wooden spoon or heatproof spatula, scraping the bottom constantly once the mixture thickens (roughly the final 30–40 minutes of a 1.5–2 hour cook). The caramel is done when it coats a spoon thickly, a drop on a cold plate holds a soft mound, and color is deep amber. Yield is roughly 20% of starting volume. Pour hot into sterilized jars; it thickens further on cooling.

• Use a pot at least 3× the volume of your starting milk — the mixture froths dramatically when baking soda first hits the warm liquid.
• Never cover the pot; steam must escape for the reduction to concentrate.
• The baking soda is non-negotiable for proper browning: without it, lactic acid keeps pH low, suppressing the Maillard reaction and producing a pale, bitter product.
• If the caramel seizes into a grainy mass, you've scorched it — start again; there is no recovery. A candy thermometer (target: 219–221 °F / 104–105 °C) prevents this.
• A wider pot reduces cooking time and gives more surface area for evaporation; a narrow, tall pot risks hot spots and scorching.
• Finished cajeta keeps refrigerated for up to 3 months in a sealed jar; warm gently in a bain-marie to restore pourability.

• Cajeta de vainilla (Celaya style)

  Goat milk base with vanilla bean; the signature product of Celaya, Guanajuato

• Cajeta envinada

  A splash of brandy or rum added off heat; slightly looser texture, complex aroma

• Dulce de leche (Argentine)

  Cow milk, no cinnamon, sometimes a touch of vanilla; cooked to a firmer, spreadable consistency (190–195 °F / 88–90 °C final temp)

• Manjar blanco (Chilean/Peruvian)

  Cow milk, pisco or lemon zest added; slightly paler due to lower sugar content (≈6:1 ratio)

• Arequipe (Colombian)

  Cow milk, higher sugar ratio (6:1), cooked to a firmer paste used in obleas and postres

• Condensed-milk shortcut (lata method)

  Submerge sealed sweetened condensed milk tins in boiling water 2–3 hours; convenient but bypasses the flavour complexity of fresh-milk reduction

• Crème Caramel (Sugar to Cream)

  Shares caramelized-sugar chemistry but proceeds from dry caramel rather than slow milk reduction

• Butterscotch Sauce (Butter to Sugar to Cream)

  Western analogue — butter-forward caramel sauce built differently but used in similar applications

• Brix Measurement and Sugar Concentration

  Finished cajeta typically reads 68–72 °Bx

1. 1.Mexico: The Cookbook — Quintana, P. (Phaidon)
2. 2.The Food of Argentina — Oseland, J.
3. 3.Dulce de Leche: Recipes, Stories, Techniques — Clark, M.
4. 4.On Food and Cooking: The Science and Lore of the Kitchen — McGee, H.

Confidence: high