Pistachio Praline Entremet Recipe

A pistachio entremet is a layered French mousse dessert that is built upside down in a mold, frozen, and covered in a mirror glaze. This one makes 8 individual domes: pistachio mousse around a dark chocolate ganache center, a thin chocolate almond sponge, and a crisp biscuit base, all under a glossy chocolate glaze.

Plan on about 1 hour 30 minutes of hands-on work and an overnight freeze, roughly 9 hours 30 minutes from start to finish. Nothing here is hard on its own. The trick is temperature: a custard cooked to 82°C, a mousse folded at room temperature, and a glaze poured at 32 to 35°C over domes that are frozen solid.

Five Layers, Top to Bottom

• Mirror glaze: sugar, water, sweetened condensed milk, dark chocolate and gelatin
• Pistachio mousse: a gelatin set custard with pure pistachio paste and whipped cream
• Ganache center: 100 g of 70% dark chocolate, 80 ml cream and a little butter
• Chocolate sponge: almond flour, icing sugar, egg, cocoa and a spoon of flour, baked thin
• Biscuit base: crushed digestive biscuits or graham crackers with melted butter and a pinch of salt

You will need a silicone half sphere mold with 8 cavities, a thermometer, an immersion blender and a wire rack set over a tray. The thermometer matters more than anything else on that list.

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Where the Praline Flavor Comes From

Despite the name, there is no separate praline insert in this recipe. All of the nut flavor comes from 100 g of pure pistachio paste in the mousse and the whole pistachios on top. Use paste made only from pistachios, with no sugar or oil added. Sweetened pistachio spreads and pistachio butter with added oil make a softer, greasier mousse that struggles to hold the dome shape.

True pistachio praline paste is different again: the nuts are cooked in caramel and then ground smooth. You can swap part of the plain paste for it if you want that toasted caramel note, but it carries a lot of sugar, so the mousse will taste sweeter. If you would rather make your own pistachio base, my homemade pistachio butter is the place to start, and the crunchy topping from my praline crunch recipe is a good garnish if you want real caramelized nuts on the plate.

For the chocolate, a 70% dark chocolate keeps the ganache firm enough to slice and balances the sweet mousse. Compound chocolate and candy melts never set with the same clean snap, so skip them here.

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A Two-Day Plan for Pistachio Entremet Domes

Day one is all building. Bake the sponge first so it cools while you work, then make the mousse, fill the molds and let them semi-set. Add the ganache, freeze again, then press in the sponge rounds and the biscuit discs. Into the freezer overnight they go, at least 8 hours.

Day two takes about 30 minutes plus thawing. Make the glaze, unmold the frozen domes, glaze, garnish, and move them to the fridge. Glaze in the morning and they are ready to serve by the afternoon.

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Baking the Thin Chocolate Almond Sponge

Beat the almond flour, icing sugar and whole egg until pale and airy. Whip the egg white to soft peaks and fold it in, then sift over the cocoa and flour and fold until no streaks remain. Stir in the melted butter last.

Spread the batter thin and even on a parchment lined tray and bake at 180°C for 10 to 12 minutes. It is done when the top springs back under a fingertip. An overbaked sponge turns dry and stiff and never bonds with the ganache, so pull it at the first sign of springiness. Once cool, cut rounds slightly smaller than the mold opening, so each one sits level on the ganache with a little mousse around its edge.

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Pistachio Mousse: Custard to 82°C, Then Fold Cool

Bloom the 4 g of gelatin in 24 ml of cold water before you start. Warm the milk until it steams but does not boil. Whisk the egg yolks with the sugar until pale, then pour in the warm milk slowly while whisking, so the yolks heat gently instead of scrambling.

Return everything to the pan and stir over medium heat until it reaches 82°C. At that point the custard coats the back of a spoon, and a finger drawn through it leaves a clean line. Go much past 85°C and the yolks start to curdle, so if you see small bits, pour it through a sieve. Off the heat, stir in the bloomed gelatin until it disappears, then the pistachio paste and a drop of green gel color if you like.

Now wait. The custard has to cool to room temperature before the cream goes in. Fold whipped cream into warm custard and it melts, leaving a runny mousse that weeps in the mold. Wait too long and the gelatin begins to set, which leaves lumps. You want it cool to the touch and still pourable. Whip the cold cream only to soft peaks, fold it in with a spatula in two additions, and fill each cavity about two thirds full. Tap the mold on the counter to knock out air pockets, then freeze for 30 to 45 minutes, until the surface is firm but still a little soft in the middle.

If you like this mousse on its own, it is close to my pistachio mousse with chocolate ganache, which skips the molds and the glaze.

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Spooning in the Ganache Center

Heat the 80 ml of cream until it just steams and pour it over the chopped chocolate. Leave it alone for 2 minutes, then stir from the center out until glossy and smooth, and stir in the butter.

Chill it briefly, stirring once or twice, until it mounds on a spoon like thick yogurt. That thickness is the whole point. Warm, runny ganache sinks into the semi-set mousse and blurs the layers. Spoon a small flat disc onto each dome and return the mold to the freezer until firm. Then press a sponge round onto each ganache disc.

The same 70% chocolate and cream combination shows up in my pistachio ganache truffles and the chocolate pistachio pralines, if you end up with extra pistachio paste.

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Pressing the Biscuit Base and the Overnight Freeze

Mix the crushed biscuits with the melted butter and a pinch of salt until it looks like damp sand. Press it into thin discs about the same width as the sponge rounds, using a ring cutter or your fingers, and press one disc over the sponge in each cavity. This becomes the flat bottom of the dome once it is turned out.

Freeze overnight. The domes must be frozen hard all the way through, not just firm on the outside, before they meet the glaze.

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Mirror Glaze at 32 to 35°C

Bloom the 8 g of gelatin in 48 ml of water. Heat the sugar, water and sweetened condensed milk until hot but not boiling, take the pan off the heat and stir in the gelatin. Add the chopped chocolate, wait 2 minutes, then blend with an immersion blender.

Keep the blender head fully under the surface and tilt the jug slightly. Lifting it even a little pulls in air, and every bubble shows on a mirror finish. Pour the glaze through a fine sieve for the smoothest result, then let it cool, stirring gently now and then, to 32 to 35°C.

• Glaze too hot (above 35°C): it runs off thin and you can see the green mousse through it. Wait a few more minutes.
• Glaze too cool (below 32°C): it goes on thick and sets in ripples. Warm it gently in the microwave in 5 second bursts and stir.
• Glaze slides off or looks streaky: the domes were not frozen solid, or they sat out long enough to sweat. Glaze straight from the freezer.
• Bubbles on the surface: pop them with a pin while the glaze is still wet, and blend with the head deeper next time.

Unmold the domes, set them on the wire rack over a tray, and pour the glaze over each one in a single steady motion so it covers the whole surface at once. Let the excess drip off for a minute. Scrape what collects on the tray back into a container; it keeps in the fridge and can be rewarmed to 32 to 35°C later.

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Garnishing, Thawing and Storing the Domes

Garnish right away, because the glaze sets within a minute on a frozen surface. A whole pistachio or two on top is enough, and a flake of gold leaf is nice if you are serving them at a party. Lift each dome with an offset spatula onto a paper case or a plate.

Thaw the glazed domes in the fridge for at least 3 to 4 hours so the mousse softens before you cut it. They keep in the fridge for up to 3 days. Unglazed domes keep well in the freezer, still in the mold and wrapped airtight, for about 2 weeks, so you can glaze them the day you need them. For clean slices, dip a sharp knife in hot water and wipe it between cuts.

For another domed dessert in the same style, try my triple chocolate mousse domes or the fruitier pistachio raspberry entremet. If you want pistachio and chocolate without the molds, the pistachio mousse tarts and pistachio chocolate lava cakes are much quicker.