- 180g caster sugar
- 6 egg yolk
Dissolve the sugar in a medium saucepan with 120ml boiling water. When clear, bring to the boil and place a sugar thermometer in the pan.
Meanwhile, whisk the yolks with an electric mixer until creamy. When the sugar syrup reaches 120C, remove from the heat at once. Keep the mixer beaters running, drizzle the syrup onto the yolks and beat, on full speed, for 3-5 mins until you have a firm yellow foam. Remove and cool, whisking occasionally. Divide into 3 portions.
Use a third of this mixture for one mousse recipe, then chill and use the rest within 2 days or freeze in 2 portions for up to 2 months. To use the frozen mixture, thaw for 10-15 mins, then beat lightly until softened.
Gordon's Secrets for successTo clean a sticky syrup pan, simply fill with water and bring to the boil.
Gordon's Secrets for successFor different flavours, add 2 chopped lemongrass stems or a fistful of fresh basil or mint sprigs when the sugar dissolves. Remove and discard flavourings when it reaches 120C and continue as the recipe.
Gordon's Secrets for successNo thermometer? It takes 5-7 mins for syrup to reach 120C. The liquid will get syrupy and the bubbles bigger. You could drop a teaspoonful of thickened syrup into a glass of ice-cold water; if it forms a small, soft ball it is ready.