Sabayon Salé

The sabayon salé (savoury sabayon) adapts the technique of its sweet Italian counterpart — zabaglione — into a voluptuous, foam-like sauce or gratin topping used in classical French cuisine to finish gratinated fish, vegetable, and shellfish dishes. Where sweet sabayon uses sugar and Marsala, the savoury version replaces them with reduced cooking liquid (fish fumet, shellfish bisque, or vegetable stock) and dry white wine or Champagne, whisked with egg yolks over gentle heat into an airy, barely-set foam. The technique is identical to sweet sabayon: egg yolks (3 per portion) are combined with the reduced liquid (approximately 2 tablespoons per yolk) in a round-bottomed copper or stainless-steel bowl set over barely simmering water. The mixture is whisked continuously and vigorously — incorporating maximum air — as it gradually heats and expands to roughly triple its original volume. The temperature must never exceed 65°C at the centre of the mixture, or the yolks will scramble into grainy curds. The finished sabayon should hold soft peaks, be light and mousse-like in texture, and taste intensely of the reduced liquid base. It is spooned or piped over the already-sauced dish (typically sole or lobster with a velouté-based sauce beneath) and placed under a very hot salamander (or broiler at maximum) for 30-60 seconds until the surface develops irregular patches of deep golden brown, creating a dramatic contrast between the bronzed crust and the airy, trembling interior. The sabayon must be used immediately after making — it cannot be held or reheated without collapsing. In its most celebrated application, Sole Gratinée au Champagne, Champagne replaces still wine for an even more ethereal result. The technique also appears in modern interpretations where a sabayon is made with vegetable jus or herb-infused stock as a light, elegant sauce alternative to cream-based preparations.

• Italian zabaglione salato
• Spanish sabayón
• Austrian Weinschaum