Name: Deslignac or Cream Royale
Prep time: 15 min
Cook time: 45 min
Total time: 3 h
Yield: One 7-inch royale, about 3 cups (8 soup-garnish servings)
Cuisine: French
Ingredients: 2⅜ cups (568 ml / 580 g) thin cream, about 18 to 20 percent fat; 1 large egg; 6 large egg yolks; ¼ teaspoon (1.25 ml / 1.5 g) fine sea salt; ⅛ teaspoon (0.6 ml / 0.3 g) freshly grated nutmeg; 1 teaspoon (5 ml / 5 g) unsalted butter, softened, for the mold

Question 1

What can I substitute for thin cream in Deslignac?

Accepted Answer

Combine equal measures of heavy cream and whole milk to make 568 milliliters, or 2⅜ cups, for this Deslignac. The blend approximates thin cream with 18 to 20 percent fat, preserving the crème royale’s light richness and delicate texture. Do not replace thin cream with undiluted heavy cream.

Question 2

How do I know when crème royale is fully cooked?

Accepted Answer

Crème royale is cooked when the edges are set and the center moves as one soft, trembling piece. An instant-read thermometer inserted in the center must register 169 to 174°F, or 76 to 79°C. Remove the custard before it becomes rigid because residual heat completes the set.

Question 3

Why did my Deslignac custard turn grainy?

Accepted Answer

Deslignac turns grainy when hot cream raises the egg mixture’s temperature too quickly. Begin tempering with a thin thread of cream while whisking constantly, then increase the flow after the eggs warm. A few cooked threads can be strained out, but a mixture that is grainy throughout must be remade.

Question 4

How much water should I use for the crème royale bain-marie?

Accepted Answer

Pour just-boiled water into the roasting pan until it reaches halfway up the crème royale mold. Poach the covered custard at 300°F for 35 to 45 minutes. The water must remain calm, without hard bubbles, so the eggs set gently and form a close, silk-smooth interior.

Question 5

Can I strain crème royale without muslin?

Accepted Answer

Line a fine-mesh sieve with damp, well-wrung fine cheesecloth when clean muslin is unavailable. Pour the crème royale mixture through without pressing, let it stand for two minutes, and spoon away surface foam. The lined sieve removes cooked threads and bubbles that would interrupt the custard’s smooth cut face.

Question 6

Can I make Deslignac ahead of time, and how should I store it?

Accepted Answer

Poach and chill Deslignac up to two days before serving, keeping the crème royale tightly covered in its mold. Unmold only when ready to cut. Cut pieces can be refrigerated for up to six hours in a covered container; arrange them in one layer so their delicate edges do not bruise.

Culinary Explorer

Deslignac or Cream Royale

Ingredients

thin cream, about 18 to 20 percent fat

large egg

large egg yolks

Where cooking meets culture.

Ingredient	Quantity
thin cream, about 18 to 20 percent fat	2⅜ cups (568 ml / 580 g)
large egg	1
large egg yolks	6