Meringue Italienne — Italian Meringue

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Meringue Italienne is the most stable of the three classical meringue types, achieved by pouring a hot sugar syrup at 118-121°C (firm ball stage) into egg whites whipping at medium-high speed. The thermal energy of the syrup — at roughly 2.5 times the temperature needed to coagulate egg proteins — partially cooks the whites as it is incorporated, setting the protein network around each air cell and creating a foam that is structurally resilient, glossy, and resistant to weeping. The syrup is prepared from sugar and water at a 3:1 ratio (300 g sugar to 100 g water), cooked without stirring to the target temperature while egg whites (150 g) begin whipping with a small portion of sugar (20-30 g) to stabilize the initial foam. Timing is paramount: the whites must reach medium-soft peaks precisely as the syrup hits 118°C. The syrup is poured in a thin, steady stream between the whisk and the bowl wall — contact with the whisk flings hot sugar onto the sides where it hardens into unusable shards. Whipping continues at high speed until the bowl is warm to the touch, then at medium speed until fully cooled to 30-35°C. The result is a dense, satin-smooth meringue that holds its shape for hours. Italian meringue is the preferred base for buttercream (crème au beurre), mousse stabilization, soufflé glacé, and torching on tarts and baked Alaska. Its cooked state also makes it food-safe without further baking. Because the sugar is pre-dissolved in syrup form, there is no risk of graininess — a frequent problem with French meringue. The finished meringue should be used within 2-3 hours for optimal texture, though it holds structure far longer than its French counterpart.

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