Bombe Santiago

Ingredients

Equipment Needed

• •1.5 litre metal bombe mould, charlotte mould, or stainless-steel bowl
• •Countertop ice-cream machine
• •Small heavy saucepan
• •Instant-read or sugar thermometer
• •Electric hand mixer or stand mixer
• •Fine-mesh sieve
• •Small offset spatula or sturdy metal spoon

Instructions

1. 1

   Freeze the mould

   Put a 1.5 litre metal bombe mould or stainless-steel bowl in the coldest part of the freezer, ideally at 0°F or -18°C, for at least 30 minutes. Chill a small offset spatula or sturdy spoon beside it. Metal takes the cold quickly and releases cleanly; glass insulates, which makes the shell slow to set and awkward to unmould.

2. 2

   Cook the Brandy ice

   Warm the milk, cream, half the sugar, and the salt in a small heavy saucepan until small bubbles gather at the edge. Whisk the 3 yolks with the remaining sugar, pour in a third of the hot dairy while whisking, then return everything to the pan. Stir constantly over gentle heat until the custard reaches 174°F to 180°F or 79°C to 82°C and nappes the spoon, meaning it leaves a clean line when you draw a finger through it. If the first fine grains appear, remove it from the heat, whisk hard, and pass it through a fine sieve. Do not let it boil. Cool the custard over an ice bath, stir in the Cognac only when it is cold, then cover and chill for 1 hour.

   Adding the Cognac after cooling protects its perfume. Measure it exactly, because alcohol lowers the freezing point and a generous extra pour leaves the shell too soft to hold.
3. 3

   Churn the outer ice

   Churn the cold Brandy ice base according to your machine's directions until it is dense, smooth, and able to hold the furrows made by the paddle, usually 20 to 25 minutes. It will remain softer than ordinary ice cream because of the Cognac. If it still flows instead of mounding, spread it in a shallow metal pan and freeze for 15 to 20 minutes, stirring once halfway through, until it becomes spreadable.

4. 4

   Clothe the mould

   Use the clothing principle from Another Method of Preparing Aspics de Filets de Soles (No. 916). The fish preparation is not part of this dessert; the shared grammar is coating a cold mould evenly. Working quickly, press the Brandy ice over the bottom and sides of the frozen mould with the chilled spoon or spatula, making a continuous layer ¼ inch to ⅜ inch or 6 to 8 mm thick. Inspect the rim and base for thin patches, then freeze the shell for 45 minutes. If the ice slides or exposes a bald patch, stop and return both mould and remaining ice to the freezer for 10 minutes before patching it. Ça se rattrape.

5. 5

   Whip the pâte à bombe

   Begin whisking the 4 yolks at low speed. Put the sugar and 3 tablespoons (45 ml / 45 g) of the water in a small saucepan, leaving the final tablespoon in reserve, and boil without stirring until the syrup reaches 244°F to 248°F or 118°C to 120°C. If crystals form on the pan wall, cover it for 30 seconds so condensation dissolves them; if they remain, remove the pan from the heat, add the reserved water, dissolve the sugar completely, and resume cooking. Pour the hot syrup in a thin thread between the whisk and the bowl while beating continuously, then increase the speed and whisk until the pâte à bombe is pale, thick, and cool enough that the bowl no longer feels warm, about 7 minutes.

6. 6

   Fold the pistachio filling

   Beat the pistachio paste and salt into the pâte à bombe until the colour is even. Whip the cold cream to soft peaks in a separate bowl. The pistachio mixture must be below 75°F or 24°C before the cream enters; if it is warmer, set the bowl over ice and whisk until cool, because warmth melts the cream and makes the filling heavy. Fold in one-third of the whipped cream to loosen the base, then fold in the remainder with broad strokes until no white streaks remain.

7. 7

   Pack and freeze

   Confirm that the Brandy ice shell is firm, then spoon in the pistachio Bombe-preparation a little at a time, pressing it gently against the sides so no air pockets remain. Fill the mould to the rim, level the surface, press parchment directly against it, and cover tightly with the lid or foil. Set it in the coldest part of the freezer for a full 3 hours at minimum; 6 hours or overnight gives the cleanest slices. This long freeze is part of the dish, not brigade scaffolding. The alcohol-softened shell and rich centre need time to set together.

8. 8

   Unmould and slice

   Chill the serving platter for 20 minutes. Remove the covering, wrap the mould in a warm damp towel for 5 seconds, then invert it over the platter and lift straight upward. If it holds, repeat the towel for another 3 seconds rather than forcing it. If the shell begins to shine or soften, return the covered mould to the freezer for 15 minutes and try again. Cut with a knife dipped in warm water and wiped completely dry between slices. Serve at once. À table!

Chef Tips

• •Use unsweetened pure pistachio paste, made only from ground pistachios. Sweetened pistachio spread upsets the sugar balance and often carries enough added fat to make the filling sluggish.
• •The natural pistachio centre should be a quiet green, not the colour of a garden gate. Do not dye it. The flecks and muted colour tell the truth about what is inside.
• •Measure the Cognac. More does not mean more flavour here; it means a shell that refuses to set. If you want a stronger perfume, pour a small glass beside the dessert.
• •Serve the bombe bare. The source composition asks for no coulis, chocolate, chopped nuts, or ornamental greenery. Its garnish is the two-tone slice, cleanly cut.

Advance Preparation

• •The Brandy ice custard can be cooked, cooled, and refrigerated up to one day before churning. Keep it tightly covered so the Cognac perfume stays in the bowl.
• •The finished bombe may remain in its covered mould for up to three days. Wrap it well, because cream and pistachio readily collect stray freezer aromas.
• •Chill the platter and dessert plates shortly before serving. Unmould only when the table is ready, since the Cognac shell softens more quickly than an ordinary ice-cream shell.

Frequently Asked Questions

Nutrition Information

1 serving (about 140g)