Ice-cream Preparation (Generic Recipe)

Ingredients

Equipment Needed

• •1-quart small saucepan for the milk
• •2-quart heavy saucepan for the custard
• •Balloon whisk
• •Flexible heatproof spatula
• •Instant-read thermometer
• •Fine-mesh sieve
• •2-quart heatproof bowl
• •Larger bowl for the ice bath
• •Immersion blender for rescue
• •Countertop ice-cream machine with at least 1-quart capacity
• •Shallow lidded freezer container

Instructions

1. 1

   Prepare the cold bath

   Fit a fine-mesh sieve over a clean 2-quart bowl, then set a larger bowl nearby with ice and cold water. Have this ready before the yolks meet the heat. Custard waits for no one once it reaches à la nappe, and immediate cooling stops the cooking before the eggs tighten further.

2. 2

   Boil the milk

   Bring the whole milk to a full boil over medium heat, stirring along the bottom so it cannot scorch. As soon as it rises, remove it from the heat. The source calls for boiling milk because it must dissolve the sugar completely and begin cooking the yolks as it is added, but it should not sit bubbling and reducing.

3. 3

   Reach the ribbon

   While the milk heats, put the yolks and sugar in a heavy saucepan and whisk immediately. Work them until the mixture turns pale, thickens, and falls from the whisk in a ribbon that rests briefly on the surface before leveling. The source points to Pâte à Génoise Fine (No. 2376) for this same visual test. Do not leave sugar sitting on bare yolks, since it draws out their moisture and forms stubborn yellow grains.

4. 4

   Temper the yolks

   Whisk a small ladleful of the boiling milk into the ribboned yolks, then add the remaining milk little by little, whisking constantly and reaching well into the corners of the pan. This gradual dilution is the tempering: it warms the yolks without seizing them. If a few flecks appear, keep calm and whisk firmly before adding more milk.

5. 5

   Cook à la nappe

   Set the saucepan over moderate to medium-low heat and stir continuously with a flexible spatula, scraping the floor and corners. The custard is ready at 180 to 183°F (82 to 84°C), when it veils the spatula and a finger drawn through the coating leaves a clean path. Never let it boil. If the first fine grains appear, remove the pan at once, set its bottom in the ice bath, and blend briefly with an immersion blender before straining. Ça se rattrape. Firm scrambled curds mean the heat went too far.

6. 6

   Strain and chill

   Pour the custard immediately through the prepared sieve. Set the bowl in the ice bath and stir until the mixture is cool, taking care that no water enters it. Cover the surface directly and refrigerate until thoroughly cold, at least 4 hours and preferably overnight. The original periodic stirring has been replaced by the ice bath because rapid cooling does the same work more safely and with less waiting.

7. 7

   Churn and harden

   Churn the cold base in a countertop ice-cream machine according to its instructions, usually 20 to 30 minutes, until it holds soft folds and the dasher leaves a clear track. Transfer it to a shallow freezer container, press parchment directly against the surface, cover, and freeze for 2 to 3 hours. If it freezes very hard, leave it at room temperature for 5 to 10 minutes before scooping; softness returns as the sugar relaxes.

8. 8

   Scoop and serve

   Dip the scoop in warm water, wipe it dry, and draw firm curls from the softened glace. Serve it alone to judge the base clearly, or alongside finished Pâte à Génoise Fine (No. 2376), keeping the cake separate so its crumb stays tender. À table!

Chef Tips

• •Whole milk is deliberate here, not a lesser substitute for cream. This is the book's ratio, and the five yolks supply its richness while allowing a delicate infusion to remain clear.
• •To flavor the base, infuse the milk before it boils with a vanilla bean, crushed coffee beans, strips of citrus peel, or toasted nuts, then strain and restore the milk to exactly 2 cups plus 1 tablespoon (500 ml) before continuing. The ratio does not change.
• •Churn only when the base is thoroughly cold. A warm custard freezes slowly, grows coarse crystals, and cannot take on enough air to become supple.
• •The cleanest test for à la nappe is the finger trail on the coated spatula. A thermometer confirms the moment, but your eyes should learn it too. The word carries the technique.

Advance Preparation

• •The cooked base may be chilled for up to 24 hours before churning. Keep its surface covered directly so it does not form a skin or absorb refrigerator odors.
• •The finished glace is best within one week. Keep parchment pressed against its surface and the container tightly closed to limit ice crystals.
• •For service, move the container from the freezer to the counter 5 to 10 minutes before scooping. Do not soften and refreeze the entire batch repeatedly, since each cycle coarsens its texture.

Frequently Asked Questions

Nutrition Information

1 serving (about 126g)