
Chef Juliette
The Preparation of Soups
Préparation des Potages teaches the first obligation of soup: it must announce the dinner in one clear, savory spoonful, then reach every guest fiercely hot in a properly warmed bowl.
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Two classical finishes, one decisive lesson: coat already-cooked food with butter-rich sauce or Mornay and cheese, then use fierce top heat to make a golden film before the sauce can boil.
Glaçages (glazings) teach one clean lesson: the food and sauce are cooked before they meet fierce top heat. You are not baking a casserole. You are creating a thin golden film almost at once, before the sauce underneath can boil or throw off its butter. That timing is the dish.
The original method assumed a saucier with warm sauce ready, a stockpot never off the fire, and a salamander that struck the surface with immediate heat. At home, one cup of finished sauce, a fully heated broiler, and a shallow bain-marie (water bath) do the same work for four. Keeping several sauces alive through service was brigade scaffolding and can go; the hot base, the water buffer, and the swift finish must stay. One cook, one stove, one evening.
Choose one of two glaçages. Whisk butter into a suitable finished sauce and color it bare, or cover the food with Mornay Sauce (No. 91), then add grated cheese and melted butter. Do not combine the routes. The step that decides everything is preheating the broiler until the surface colors in seconds rather than simmering underneath.
Glaçage belongs to the Parisian grand-kitchen service table, where a finished dish could pass beneath a salamander moments before it entered the dining room. The technique traveled easily into cuisine bourgeoise because a household broiler could supply the fierce top heat, while a shallow water bath protected the carefully built sauce below. Despite its place among gratins, this is not prolonged baking: the food is already cooked, and only the golden surface is made at the finish.
Quantity
5 cups (1.2 L / 650 g)
drained thoroughly and kept hot
Quantity
1 cup (240 ml / 250 g)
warm; choose for the butter glazing
Quantity
3 tablespoons (45 ml / 42 g)
softened and divided into small pieces for the butter glazing
Quantity
1 cup (240 ml / 250 g) Mornay Sauce (No. 91)
warm; choose for the cheese glazing
Quantity
1/4 cup (60 ml / 25 g)
mixed in equal parts for the cheese glazing
Quantity
1 tablespoon (15 ml / 14 g)
melted for the cheese glazing
Quantity
2 cups (480 ml / 480 g)
for the bain-marie
| Ingredient | Quantity |
|---|---|
| fully cooked, lightly seasoned vegetablesdrained thoroughly and kept hot | 5 cups (1.2 L / 650 g) |
| smooth finished sauce suited to the vegetables (optional)warm; choose for the butter glazing | 1 cup (240 ml / 250 g) |
| unsalted butter (optional)softened and divided into small pieces for the butter glazing | 3 tablespoons (45 ml / 42 g) |
| Mornay Sauce (optional)warm; choose for the cheese glazing | 1 cup (240 ml / 250 g) Mornay Sauce (No. 91) |
| finely grated Gruyère and Parmesan (optional)mixed in equal parts for the cheese glazing | 1/4 cup (60 ml / 25 g) |
| unsalted butter (optional)melted for the cheese glazing | 1 tablespoon (15 ml / 14 g) |
| just-boiled waterfor the bain-marie | 2 cups (480 ml / 480 g) |
Set an oven rack about 4 inches (10 cm) below the broiler and heat it at its highest setting for a full 10 minutes. The old salamander gave fierce heat the instant a dish arrived; a thoroughly preheated broiler is the honest home equivalent. Have a shallow gratin dish and a rimmed metal roasting pan ready.
Drain the cooked vegetables until no water collects beneath them, then spread them in the gratin dish in a shallow, even layer. They must be fully cooked and hot before the sauce goes on. The broiler has time to color a surface, not warm a cold center, and wet vegetables dilute the sauce before it can glaze.
For the butter glazing, take the warm finished sauce off the heat and whisk in the softened butter a piece at a time until the sauce is glossy, rich, and thick enough to coat a spoon. Never boil it after the butter enters. If it turns greasy, stop. Ça se rattrape: whisk 1 teaspoon of the hot bain-marie water in a clean bowl, then add the broken sauce gradually until the emulsion gathers again. For the cheese glazing, simply warm the Mornay Sauce (No. 91) gently until it flows from the spoon without boiling.
Pour the buttered sauce evenly over the vegetables if using the first route. For the second route, cover them with the Mornay Sauce (No. 91), sprinkle the Gruyère and Parmesan evenly over the surface, and trickle the melted butter across the cheese. Set the gratin dish inside the rimmed roasting pan on the partly pulled-out oven rack, then carefully pour in enough boiling water to stand about 1/4 inch (6 mm) deep around it. This shallow bain-marie is not there to cook the food; it protects the sauce from boiling and separating while the heat strikes from above.
Slide the rack beneath the broiler and watch without leaving it. The butter glazing should take a light, even golden film; the Mornay should form a delicate golden crust from its cheese and melted butter. Turn the dish once if the heat falls unevenly, but expect 45 seconds to 3 minutes, not a long bake. If the sauce starts boiling before it colors, pull it out immediately and move the rack closer to the heat. If beads of butter appear, let the dish settle for a minute, blot only the free fat, smooth the surface, and flash it beneath the broiler for another 10 to 20 seconds. Ça se rattrape.
Lift the gratin dish carefully from the water and let it stand for 2 minutes, just long enough for the sauce to settle beneath its thin golden film. Bring it to the table in its dish and serve at once. A glaçage waits for the diners, never the other way round. À table!
1 serving (about 230g)
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