Italian Sabayon with Pistachio Brittle and Espresso
A light and elegant Italian mousse infused with espresso, served with crunchy pistachio brittle. This classic sabayon is whisked over gentle heat until silky and voluminous, creating a simple yet sophisticated dessert that feels restaurant-quality.
- Prep
- 10 min
- Cook
- 20 min
- Wait
- 10 min
- Total
- 40 min
- Makes
- Serves 4 with pistachio brittle
Steps
Before you start
- Separate 4 eggs while they're cold, then let the yolks come to room temperature (about 15–20 minutes)
- Assemble your double boiler: a 2-quart heatproof bowl that fits over a saucepan without the bottom touching the water
- Have all brittle ingredients (sugar, butter, pistachios, vanilla, baking soda) prepared and within arm's reach—it cooks quickly
- Gather candy and instant-read thermometers, parchment paper, and a baking sheet
Prepare brittle ingredients
- Line a baking sheet with parchment paper.
- Roughly chop the roasted salted pistachios into pieces about 1/4 to 1/2 inch (6–12 mm).
- Have the baking soda ready—it will be added at the last moment.
Cook sugar and butter to amberOven 350°F / 175°C
- In a 1-quart (950 ml) saucepan, combine the granulated sugar and unsalted butter.
- Heat over medium heat, stirring occasionally, for 8–10 minutes until the mixture turns a deep amber color (about 350°F / 175°C on a candy thermometer).
- Watch carefully during the last 2 minutes—the sugar transitions from perfect to burnt very quickly.
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Ready when: Deep amber color, 350°F (175°C) on candy thermometer
Tip: Don't stir constantly; stir occasionally to avoid crystallization. Remove from heat the moment it reaches the right color.
Add nuts and set
- Remove the saucepan from heat immediately.
- Add the vanilla extract and baking soda (the mixture will bubble up vigorously—this is normal).
- Stir quickly and vigorously for about 20–30 seconds to incorporate the nuts and aerate the mixture.
- Pour the entire mixture onto the prepared parchment paper.
- Do not stir or fold after pouring; let it set undisturbed.
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Ready when: Brittle is completely hardened and no longer warm to the touch
Tip: Once you add the baking soda, work quickly—you have only a few seconds before the mixture begins to set. Don't overthink it.
Combine yolks and wine
- In a 2-quart heatproof bowl, add the 4 egg yolks, 1/4 cup (50 g) granulated sugar, instant espresso powder, and fine sea salt.
- Whisk vigorously until the mixture is pale and slightly thickened, about 1–2 minutes.
- Add the 1/2 cup (120 ml) dry white wine and whisk until combined.
Whisk over gentle heatOven 160°F / 70°C
- Place the bowl over a saucepan of gently simmering water (the bottom of the bowl should not touch the water).
- Whisk constantly and vigorously for 8–10 minutes.
- The mixture will become lighter in color and increase significantly in volume—it should roughly triple in size.
- The sabayon is finished when it reaches an internal temperature of 160°F (71°C), is very light and fluffy, and forms silky ribbons when the whisk is lifted from the mixture.
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Ready when: Reaches 160°F (71°C) internal temperature, tripled in volume, forms silky ribbons when whisk is lifted
Tip: Whisk constantly to avoid scrambling the eggs. The water should simmer gently, not boil vigorously. Use an instant-read thermometer to ensure food safety.
Cool slightly and plate
- Remove the bowl from the double boiler.
- Continue whisking for another 1–2 minutes off the heat, allowing the sabayon to cool slightly.
- Divide the sabayon among 4 serving bowls, glasses, or coupes.
- Break the pistachio brittle into bite-sized pieces and arrange on top of each serving.
- Serve immediately.
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Tip: The sabayon will begin to deflate after 30 minutes, so serve immediately for the best texture. If you must hold it, chill it and eat it cold with a spoon.
Good to know
Tips
- Whisk constantly over gentle heat to avoid scrambling the eggs—the water should simmer gently, not boil vigorously. Use an instant-read thermometer to ensure the sabayon reaches 160°F for food safety.
- For the brittle, use a candy thermometer and watch carefully during the last 2 minutes of cooking. The sugar goes from perfect amber to burnt in seconds, so don't leave the stove.
- Once the brittle is poured onto parchment, don't touch it or stir it—let it cool and harden undisturbed. Breaking it into pieces while warm will result in a gooey, sticky mess.
- The sabayon must be served within 30 minutes of whisking for the best, lightest texture. It will gradually deflate as it sits, though it will still taste excellent cold if made ahead.
Make ahead
The pistachio brittle can be made up to 2 days ahead and stored in an airtight container at room temperature. Make the sabayon just before serving, as it will begin to deflate after about 30 minutes.
Storage & reheating
Sabayon is best served immediately and fresh. Any leftover can be refrigerated in a covered container for up to 1 day but will deflate significantly and lose its fluffy texture; serve cold with a spoon. The pistachio brittle keeps in an airtight container at room temperature for up to 3 days; it will gradually soften over time but remains crunchy if stored properly.
Substitutions
- dry white wine → Marsala wine (sweet or dry). Use the same amount. This is the traditional Italian version and provides a richer, slightly sweeter flavor. Dry Marsala is more elegant; sweet Marsala is more dessert-like.
- instant espresso powder → 3 tablespoons strong brewed espresso, cooled, and reduce white wine to 1/4 cup (60 ml). Fresh espresso provides a more vibrant flavor but requires cooling first. Adjust wine slightly to maintain proper sabayon consistency.
- roasted salted pistachios → Roasted unsalted almonds or roasted hazelnuts. Use the same amount. Almonds will be lighter in flavor; hazelnuts provide a richer, deeper taste. Both work beautifully in the brittle.
- baking soda → Omit entirely. The brittle will be denser and chewier but still crunchy and delicious. The baking soda primarily adds aeration and a lighter texture.
