Bûche Ispahan – Rose, Raspberry, and Lychee Yule Log (No Macaron Base)
A light and elegant Ispahan Yule Log with raspberry confit, lychee crémeux, rose mousse, soft sponge, and striped mirror glaze. Inspired by Pierre Hermé.Inspired by Pierre Hermé's iconic Ispahan flavor, this bûche is a delicate blend of rose, raspberry, and lychee. Traditionally seen as a macaron, this version transforms it into an elegant holiday entremet. Without the macaron biscuit, this log features layers of raspberry confit, silky lychee crémeux, soft almond sponge, crunchy raspberry layer, and a smooth rosewater mousse. Finished with a shimmering, striped mirror glaze in rose tones, this dessert is as stunning as it is delicious. Perfect for special occasions or festive tables, this refined bûche is sure to impress lovers of floral and fruity desserts.
Course Dessert
Cuisine French
Keyword pastry
Prep Time 1 hourhour30 minutesminutes
Cook Time 29 minutesminutes
Servings 12people
Ingredients
🍓 Raspberry Confit
185graspberry purée
35gsugar
3gpectin NH
🍈 Lychee Crémeux
100glychee purée
60gegg yolks
1whole egg
60gsugar
60gbutter
🍰 Soft Almond Sponge
40galmond flour
10gall-purpose flour
10gcorn starch
1gbaking powder
40gbutter
40gpowdered sugar
40gwhole eggs
🌸 Raspberry Crunch Layer
40graspberry chocolatee.g., Valrhona
20gcorn flakes
5gneutral oil
🌹 Rose Mousse
3ggelatin powder200 bloom + 18 g water
125mlmilk
1tsprose syrup
50gegg yolks
35gsugar
140gheavy cream35%
✨ Mirror Glaze
15ggelatin powder200 bloom + 90 g water
112gwater
225gsugar
225gglucose syrup
150gsweetened condensed milk
225gwhite chocolate couverture
Whiterose, and ruby red food coloring (gel or oil-based)
Instructions
📅 Day -2 – Inserts & Sponge
Raspberry Confit:
Mix sugar and pectin.
Heat raspberry purée to 40°C, then add sugar/pectin mixture.
Bring to a boil while whisking continuously.
Pour into a film-lined insert mold and freeze for at least 5 hours or overnight.
Lychee Crémeux:
Heat lychee purée to a boil.
Whisk yolks, egg, and sugar until pale.
Pour hot purée over egg mixture, then cook to a gentle boil while whisking.
Remove from heat. When the mixture reaches 50°C, add butter and blend.
Pour over frozen raspberry confit. Freeze again for at least 5 hours.
Almond Sponge:
Preheat oven to 180°C and line a baking tray.
Sift together flour, cornstarch, and baking powder.
Cream butter and powdered sugar until fluffy.
Add almond flour, then the eggs, and finally the dry ingredients.
Spread or pipe into a rectangle mold and bake 8–10 minutes.
Let cool, then cut to 22 × 6.5 cm.
Raspberry Crunch:
Lightly crush cornflakes.
Melt raspberry chocolate and stir in oil.
Mix in cornflakes and spread evenly into a mold.
Freeze until firm.
📅 Day -1 – Mousse & Assembly
Rose Mousse:
Bloom gelatin in water.
Whisk yolks and sugar until light.
Heat milk and rose syrup to a boil.
Gradually whisk into egg mixture, return to pot, and cook to 82°C.
Remove from heat, stir in gelatin, and blend if needed.
Cool to 30–35°C.
Whip cream to soft peaks and fold into rose custard gently.
Assembly:
Fill silicone mold halfway with rose mousse. Spread evenly up the sides.
Insert the frozen raspberry/lychee layer and the almond sponge topped with crunch.
Press lightly, then smooth the top.
Freeze at least 24 hours before glazing.
📅 Day 0 – Mirror Glaze & Finishing
Mirror Glaze:
Bloom gelatin in water.
In a tall container, place white chocolate, condensed milk, bloomed gelatin, and white coloring.
Heat sugar, glucose, and water to 104°C.
Pour over chocolate mix and blend gently with immersion blender (avoid bubbles).
Strain and refrigerate overnight with plastic wrap on surface.
Final Glaze:
Reheat glaze to 35°C. Divide into 3 containers.
Color each portion: one white, one rose pink, one ruby red.
Lightly blend each color.
Layer the 3 colors gently into one pitcher (do not stir).
Unmold frozen log, place on rack with a tray beneath.
Pour glaze from one end to the other in a straight, slow motion to create stripes.
Let excess drip, remove with a spatula, and transfer to serving dish.
Notes
Defrosting: Let the log thaw in the refrigerator for 4–5 hours before serving.