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Make-ahead caramel pecan mousse cakes with a buttery biscuit base, toasted pecans, and a simple salted caramel made with glucose syrup.
45 min active · 4 hr 45 min total
Warm the cream before adding it to the caramel to reduce splattering.
Use glucose syrup or light corn syrup by weight; both help the caramel stay smooth.
Fold the caramel base into softly whipped cream only after it has cooled to room temperature.
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Divide eight 150 to 180 ml dessert glasses or small jars between a tray. Mix the crushed biscuits, finely chopped pecans, melted butter, and salt until the crumbs look evenly moistened.
Spoon the mixture into the glasses and press lightly with the back of a spoon. Chill while you make the caramel mousse.
Put the gelatine powder in its cold water and leave it to bloom. Warm 150 ml of the cream in a small saucepan until steaming, then keep warm.
In a medium saucepan, combine the sugar, glucose syrup, and water. Cook over medium heat without stirring until deep amber. Remove from the heat and carefully whisk in the warm cream; the mixture will bubble.
Stir in the butter and fine sea salt until smooth. Measure out 150 g of the caramel for the mousse and reserve the remaining caramel for topping.
Warm the 150 g caramel gently, then stir in the bloomed gelatine until fully dissolved. Let it cool to room temperature; it should be fluid, not hot, before it meets the whipped cream.
Whip the remaining 300 ml cream to soft peaks. Fold a third into the cooled caramel to lighten it, then gently fold in the rest until no streaks remain.
Spoon the mousse over the chilled biscuit bases and refrigerate for at least 4 hours, until set.
Before serving, warm the reserved caramel briefly if needed so it can be drizzled. Top each cake with caramel, chopped pecans, and flaky sea salt if using.
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Everything you want to know about this recipe.
These caramel pecan mousse cakes turn the flavours of toasted pecans, salted caramel, and buttery biscuit crumbs into a practical make-ahead dessert. Instead of pastry rings, dome moulds, mirror glaze, or a piping bag, the mousse sets directly in small glasses or jars. The result still feels special, but the method suits a home kitchen.
The biscuit base brings crunch, while the caramel mousse is soft and creamy. Finish each portion with a little extra caramel, toasted pecans, and a few flakes of sea salt. The recipe makes eight individual desserts, which makes serving straightforward for a dinner party or a weekend treat.
Glucose syrup takes the place of invert sugar in this recipe at the same weight. It is less sweet than invert sugar but serves the useful job of helping the caramel stay smooth and resist crystallising. Look for liquid glucose in baking shops; light corn syrup is the closest common substitute in the United States.
The recipe still begins with granulated sugar, because that is what develops the caramel flavour and amber colour. Add the warm cream only after the sugar syrup is deep amber. It will bubble sharply, so use a saucepan with room to spare and whisk carefully.
The mousse needs only an electric mixer and a saucepan. Bloom the gelatine first, then dissolve it in a portion of warm caramel. Let that mixture cool to room temperature before folding it into softly whipped cream. If the caramel is hot, it will melt the whipped cream; if it is already setting, it can leave small caramel streaks instead of a smooth mousse.
Divide the crumb base and mousse into glasses rather than trying to unmould a delicate dessert. Chill for at least four hours so the mousse can set. For the cleanest finish, save the caramel drizzle and pecans until just before serving.
Serve each cake cold from the refrigerator, with the caramel just warm enough to drizzle. A few flakes of sea salt balance the sweetness, while the toasted pecans give texture. For a different nut flavour, walnuts work well in the same weights.
Keep the finished mousse cakes covered in the refrigerator for up to 2 days. Add the pecan topping shortly before serving so it stays crisp. Freezing is not recommended because the mousse and biscuit base can lose their texture after thawing.
One mousse cake is a planned dessert portion. The nutrition estimate varies with the brand of biscuits, cream, and glucose syrup used.
Serve this after a meal or as a planned treat, rather than alongside another rich dessert.
Because this dessert is rich in cream and butter, keep earlier meals that day lighter in saturated fat and include fruit or vegetables with the main meal.
Serving Size: 1 mousse cake (one-eighth recipe)
* Reference intakes are based on an average adult's 8,400 kJ / 2,000 kcal diet. Your needs may be higher or lower.
Yes. Use glucose syrup at the same weight for this caramel. It helps limit crystallisation and gives the sauce a smooth texture. Light corn syrup is the closest everyday substitute in the United States.
No. Watch for the sugar syrup to turn a deep amber colour, then take it off the heat before adding the warm cream. Use a thermometer only if it helps you feel more confident with caramel.
Yes. Keep the mousse cakes covered in the refrigerator for up to 2 days. Add the caramel drizzle and pecans shortly before serving for the best contrast between the creamy mousse and crisp nuts.
Yes. Use enough leaves to equal 4 g powdered gelatine according to the packet conversion, soak them in cold water, squeeze them dry, and dissolve them in the warm caramel.
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