Cajeta
“Goat's milk slowly reduced with sugar, a cinnamon stick, and a pinch of baking soda until it becomes a deep amber caramel — the Celaya version is the standard.”
Where it comes from
Cajeta is a regional product of Celaya, in Guanajuato state — central Mexico's Bajío region — where goat-herding established itself in the colonial period and convent kitchens reduced milk for preservation. The name «cajeta» comes from the small wooden boxes (cajetas) it was traditionally sold in. It is distinct from Argentine dulce de leche (cow's milk, no soda) and Filipino pastillas — the goat-milk and baking-soda combination is specifically Celayense and protected as a regional designation.
On the plate
Cajeta tastes like dulce de leche but with a goat-milk tang sitting under the caramel — a faint barnyard sharpness that keeps the sweetness from being flat. The texture should be pourable when warm, just barely so when cool. Drizzled on a warm crepe, it melts and runs; spooned over vanilla ice cream, it ribbons and seizes against the cold. The canela ghost is faint but real. Done right, the colour is mahogany; pale tan means the cook stopped too early.
How it works
Three reactions happen simultaneously, and the soda manages all three. (1) Maillard browning — milk proteins and lactose react to form deep flavour and colour; soda raises pH, which speeds Maillard significantly. (2) Caramelisation — sucrose breaks down at high temperature; the slow simmer keeps it controlled. (3) Acid neutralisation — goat's milk has more free fatty acids than cow's; without soda the cajeta would curdle as it concentrates. The wide pot maximises evaporation surface, which is what turns 2L of milk into 500ml of paste in under two hours.
Celaya, Guanajuato — the name comes from the small wooden cajetas it was sold in. Goat's milk plus baking soda is the regional signature: soda raises pH (speeds Maillard), neutralizes goat-milk free fatty acids (prevents curdling), and runs alongside sucrose caramelization. 2L of milk reduces to 500ml in under two hours over a wide pot.
Variations
Cajeta quemada is the cooked-darker standard; cajeta envinada adds rum or sherry; cajeta de vainilla skips the rum; Argentine dulce de leche is the cow-milk no-soda cousin; Filipino pastillas dries the same logic into a candy.
On the Palate
Ingredients
Serves 16How it's made
6 steps · Show ↓110 min active · 20 min waiting
How it's made
6 steps · Show ↓- 13 min
In a wide, heavy pot (4L+ — the milk will foam high), combine 2L goat's milk, 500g granulated sugar, and one 8cm canela stick. A wide pot is non-negotiable — surface area drives evaporation.
Watch outUse a pot at least 4L for 2L of milk — when you add the soda the foam triples.
- 25 min
Bring to a low boil. Dissolve 1/2 tsp baking soda in 2 tbsp water and add slowly while stirring — the mixture foams hard and turns slightly grey-pink. Stir until foam subsides. Soda neutralises the milk's acidity and accelerates Maillard browning.
Watch outPour the dissolved soda in a thin stream off the heat if you can — adding all at once on full boil can foam over.
- 345 min
Reduce heat to a steady low simmer. Stir every 5-8 minutes for the first 45 minutes — the milk reduces and starts to thicken. Skim any skin that forms.
- 430 min
After about 45 minutes, the colour deepens to honey gold. Stir more frequently now — every 2-3 minutes — and especially across the bottom. Browning at the bottom means scorching at this stage.
Watch outIf you see brown specks rising as you stir, pull the heat lower immediately — once cajeta scorches, the bitter taste won't leave.
- 520 min
When the colour is deep amber and a spoon dragged across the bottom leaves a clear track for 1-2 seconds, it's done — about 15-20 minutes more. The cajeta will coat the back of a spoon thickly. Total cook is 90-100 minutes.
Watch outCajeta thickens significantly as it cools — pull at slightly looser-than-final texture, like warm honey.
- 65 min
Remove the canela stick. Strain through a fine sieve into a clean jar (catches any tiny scorch). Cool to room temp, then refrigerate. Use on warm crepes, drizzled on vanilla ice cream, in the centre of cookies — anywhere caramel goes.
