Browning for Stock

Ingredients

• 2 oz powdered sugar
• 300 ml water

Method

Burn sugar until it's black, then dissolve it in water. This is caramelisation taken past the point of sweetness — you're after bitter compounds and colour, not flavour depth. The darker the sugar, the more stock colouring it will yield; stop when it smells acrid and looks the colour of old mahogany.

Heat 60g of the powdered sugar in a heavy-bottomed pan over moderate heat without stirring. Watch the edges — they'll turn amber first, creeping towards the centre. Once the whole mass is liquid and deep brown (around 160–170°C if you're using a thermometer, though you shouldn't need one), add another 60g of sugar in small handfuls. Each addition will cause the pan to seethe; let it settle before adding more. Keep going until all 60g is incorporated and the mass is nearly black — glossy, not granular. This matters: pale caramel tastes sweet and bitter at once. True browning tastes only bitter, with no sugar notes.

Remove from the heat immediately. The residual warmth will darken it further — you'll see a faint shimmer on the surface, almost iridescent. Pour 300ml of cold water in a thin stream whilst standing back; the mixture will spit and steam violently. Once the violent reaction subsides, return the pan to low heat and stir until any stuck caramel dissolves. You're not making sauce — you want a bitter, dark liquor with no grittiness.

Cool completely, then pour into a glass bottle and seal it. The browning keeps for months. Use a teaspoon or two per litre of stock, stirring it through at the end of cooking to darken the colour without adding sweetness. It's useful when you need depth of colour without reducing further — particularly for beef or veal stocks where you want a polished mahogany tone. Too much and the stock tastes burnt; too little and you might as well have caramelised the bones instead. Start with half a teaspoon and taste.