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Mini tiramisu-inspired opera cakes layered with coffee sponge, cocoa-nib praline, chocolate ganache, mascarpone mousse and glossy coffee glaze.
These mini cakes combine coffee sponge, cocoa nib praline, ganache, mascarpone mousse, and coffee-based finishing components in a layered frozen assembly. The format is small, but the recipe uses the same staged build as a larger opera-style dessert.
The sponge provides the base, the praline adds crunch, the ganache adds density, and the mousse softens the overall texture. Coffee gel, chantilly, and glaze are finishing elements rather than structural layers.
Serve these bites cold once the exterior has set and the center has softened slightly. Because several components are coffee-based, smaller portions are usually enough.
Mini tiramisu-inspired opera cakes layered with coffee sponge, cocoa-nib praline, chocolate ganache, mascarpone mousse and glossy coffee glaze.

Freeze between layers for clean, defined structure.
Use strong freshly ground coffee for best depth of flavour.
Keep coating at 35°C for even dipping.
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Whip butter with ground coffee until smooth.
Beat egg yolks with sugar (1).
Sift flour and starch together.
Whip egg whites to stiff peaks, adding sugar (2).
Combine yolk mixture with butter–coffee paste.
Fold in whites, then flour mixture gently.
Spread to 1 cm thick and bake at 175°C for 13 minutes.
Cut into 3 cm disks.
Roast hazelnuts at 160°C for 15 minutes.
Prepare dry caramel and pour over nuts; add cocoa nibs.
Mix with oil and fleur de sel.
Process with flat beater 30 minutes to create granular praline.
Bring milk, cream, and glucose to a boil.
Emulsify with chocolate.
Mix in clarified butter.
Boil milk; add piloncillo and baking powder.
Reduce to one quarter, stirring often.
Add ground coffee.
Mix all ingredients until a smooth mousse forms.
Melt cocoa butter; pour over chocolate and blend.
Combine ingredients and whip to soft peaks.
Roast almonds at 150°C for 15 minutes.
Heat water and sugar to 110°C; add almonds and caramelise.
Cool, then blend with fleur de sel and coffee to a paste.
Heat coffee, add sugar and agar; boil briefly.
Cool, mix, and reserve.
Heat milk, cream, sugar (1), glucose.
Add starch mixed with sugar (2).
Boil, cool to 40°C, add gelatin mass.
Strain.
Place coffee sponge disk in each silicone mold.
Add praline and ganache; freeze 30 minutes.
Add mascarpone mousse; freeze 2.5 hours.
Heat chocolate coating to 35°C.
Unmold and dip each opera.
Pipe coffee Chantilly flowers; garnish with praline, gel, and neutral glaze.
Freeze again 2.5 hours before serving.
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Serving Size: 1 mini opera
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
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