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Marbled Jelly
Take a jelly-mould, place some pieces of sweet jelly at the bottom; over these pour some more that has had milk or cream mixed with it to render it white, so as to form the veins of the marble. The jelly should be only liquid, for if it is too warm it will melt the other, and ruin the effect. Allow the jelly to get cool as soon as possible, then proceed as before, and keep on in that way until the mould is full; pack it in ice and leave it until the jelly is quite set. When ready, dip the mould in warm water, and turn out on a glass dish.
This is a technique rather than a formula: Oscar assumes you already have a batch of sweet table jelly on the stove and only tells you how to layer it so it looks like veined marble. Everything depends on temperature control.
- What "jelly" means hereA sweetened, gelatin-set dessert jelly — wine, lemon, orange or calf's-foot jelly — not jam or preserve. Any clear gelatin dessert base works, set slightly firmer than a wobbling glass jelly since it has to hold sharp edges in a mould.
- The hinge: work at setting pointEach layer must be poured when the jelly is barely liquid — cool, syrupy, on the edge of setting. Warm jelly will melt the layer beneath and the two will bleed together into a muddy blur instead of veining. Keep the working jelly in a bowl over tepid, not hot, water and test it on the back of a spoon.
- No quantities are givenOscar specifies neither the amount of jelly nor the mould size. For a 1-quart mould, count on about 3 cups of clear jelly and 1 cup whitened with cream, built up in six to eight thin layers.
- Whitening with creamCream or evaporated milk clouds the jelly to opaque ivory. Add it off the heat and stir gently; if the base jelly is sharply acidic — a lemon or wine jelly — the cream can curdle into specks. Temper the cream into a little of the jelly first, or use a milder base.
- Setting the layers"Pack it in ice" means the refrigerator now. Give each layer 15–20 minutes to set firm enough to take the next pour without shifting; a layer that is merely tacky will slump. The whole mould needs 4 hours to overnight before turning out.
- Gelatin strengthPeriod jellies often depended on isinglass or calf's-foot stock, whose setting strength varied, though packaged gelatine was also on sale by the 1890s. Modern powdered gelatin is standardised: 1 envelope (2 1/4 tsp) per 2 cups liquid is the usual ratio, and a mould that has to be turned out may want a little more than that.
- Turning outDip the mould in warm — not hot — water for 5 to 10 seconds only, to the rim, then invert onto a wetted glass dish so the jelly can be slid into position. Longer than that and the surface glazes over and loses its cut.
- YieldA 1-quart mould serves six to eight. Make it the day before; it keeps two days covered in the refrigerator, though the definition of the veining dulls with standing.
Moulded jelly was the display piece of the nineteenth-century dessert table, and marbling was one of the standard tricks for showing off a kitchen's control of gelatin. Before commercial powdered gelatin was widely available, clear jelly meant hours of simmering calf's feet or dissolving isinglass and then clarifying with egg white, so a tall, glassy, precisely layered mould advertised both skill and labour. Cooks built ribbon jellies, chequerboards and mac dicated in successive settings; marbling, with its irregular veins, was the freer version of the same idea and forgiving of a slightly uneven hand. Oscar Tschirky, the maître d'hôtel whose name carried the Waldorf's 1896 cookbook, was recording the repertoire of a hotel kitchen — the sort of establishment that, unlike the domestic kitchens of the period, was among the earliest adopters of ice plants and mechanical cooling. The dish belongs to the same taste for edible architecture that produced spun-sugar baskets and aspic-glazed galantines, and it faded as dinner service grew shorter and plated desserts replaced the loaded sideboard.