The ultimate cozy dessert, featuring layers of moist brown butter cake, toasted biscuit crunch, rich dark chocolate ganache, and a caramelized marshmallow mousse, achieving the quintessential bonfire S’mores flavor profile.
Yields: 12 Servings
Target Mold Size: 18 cm diameter silicone mold (e.g., Silikomart Universo)
DAY ONE: Component Preparation & Internal Assembly
1. Brown Butter Preparation (General)
| Materials | Weight (g) | Notes |
|---|---|---|
| Unsalted Butter | 200 g | Used for both Cake and Dark Chocolate Ganache |
| Unsalted Butter | 80 g | Used for Toasted Biscuit Crunch |
Method
- Prepare Initial Batch (200 g): In a medium-sized pot, melt the 200 g of butter over medium heat. It will melt, sputter, and begin to foam. Continue heating and stirring until the milk solids settle to the bottom and turn a deep amber-brown, releasing a distinct nutty, caramelized aroma (beurre noisette). Caution: Do not over-brown, as this will result in a bitter flavor.
- Strain and Chill: Pour the brown butter into a small, heatproof container, ensuring the caramelized milk solids are included. Place in the freezer, stirring every 5 minutes until it reaches a soft, spreadable consistency (approx 120 g needed for cake, 17 g for ganache). This stirring ensures the flavorful solids are evenly distributed. Once a soft-butter consistency is achieved, remove from the freezer and keep at room temperature.
- Prepare Crunch Batch (80 g): Melt the 80 g of butter in a separate pot and brown using the same method. Strain the entire batch and allow it to cool slightly while remaining melted (approx 60 g needed for crunch).
2. Brown Butter Cake (2 Layers)
| Ingredients | Weight (g) | Notes |
|---|---|---|
| All-Purpose Flour | 125 g | |
| Cornstarch (Maizena) | 15 g | |
| Fine Salt | 1.3 g | Approximately 1/4 tsp |
| Baking Powder | 3.8 g | Approximately 3/4 tsp |
| Baking Soda | 1.2 g | Approximately 1/4 tsp |
| Prepared Brown Butter | 120 g | Room temperature, soft consistency (from Step 1) |
| Caster Sugar | 125 g | |
| Vanilla Paste | 5 g | Equivalent of 1 tsp |
| Large Egg (Whole) | 75 g | Room temperature (approx. 1 1/2 eggs) |
| Large Egg White | 30 g | Room temperature (approx. 1 medium egg white) |
| Buttermilk | 123 g | Room temperature (equivalent of 120 ml) |
| Cinnamon | 3.8 g | Equivalent of 1 1/2 tsp |
| Gingerbread Spice Mix | 1.9 g | Equivalent of 3/4 tsp |
Method
- Preheat and Prepare: Preheat the fan oven to 175°C. Line two 16 cm diameter pastry rings (or springform pans) with parchment paper.
- Combine Dry Ingredients: In a bowl, whisk together the flour, cornstarch, baking powder, baking soda, cinnamon, gingerbread spice mix, and salt.
- Cream Butter and Sugar: In a separate large bowl, whisk the room-temperature brown butter and caster sugar at high speed with a hand mixer until the mixture is light, fluffy, and significantly paler in color.
- Add Liquid: Scrape down the sides, then add the whole eggs, egg white, and vanilla paste. Whisk for about 1 minute.
- Mix Batter: Reduce the mixer speed to low. Gradually mix in the dry ingredients until just combined. Gently pour in the buttermilk and mix briefly until homogenous.
- Bake: Divide the batter evenly between the two prepared 16 cm rings. Bake for approximately 13 to 17 minutes.
- Cool and Level: Allow the cakes to cool completely. Trim the top off so each cake is precisely 1.5 cm tall. Wrap one cake layer and reserve it at room temperature.
- Prepare Base: Place the first cake layer into a 16 cm diameter pastry ring lined with an acetate collar and a parchment base. Gently level the surface with a glass. Chill in the refrigerator.
3. Dark Chocolate Ganache with Brown Butter (Insert Layer)
| Ingredients | Weight (g) | Notes |
|---|---|---|
| Heavy Cream (35% fat) | 206 g | Equivalent of 200 ml |
| Dark Chocolate (55% cocoa solids) | 170 g | Finely chopped |
| Prepared Brown Butter | 17 g | Room temperature, soft consistency (from Step 1) |
Method
- Emulsify Base: Finely chop the dark chocolate and place it in a bowl. Heat the heavy cream in a saucepan until it is steaming and almost boiling (approx 90°C). Remove from heat and pour the hot cream over the chopped chocolate. Let sit for 1 minute.
- Blend: Stir gently in the center of the bowl to start the emulsion. Pour the mixture into a tall jug. Add the room-temperature brown butter and blend with an immersion blender until the ganache is smooth and completely homogenous.
- Thicken: Pour the ganache into a piping bag and let it rest at room temperature to thicken. It must be thick and pipeable, not fluid, before assembly.
4. Toasted Biscuit Crunch with Brown Butter & Caramel
| Ingredients | Weight (g) | Notes |
|---|---|---|
| Digestive Biscuits | 150 g | |
| Prepared Brown Butter | 60 g | Melted (from 80 g butter, Step 1) |
| Cinnamon | 3.8 g | Equivalent of 1 1/2 tsp |
| Gingerbread Spice Mix | 1.9 g | Equivalent of 1/4 tsp |
| Feuilletine Flakes | 40 g | |
| Caramel Chocolate (30%) | 75 g | Melted (e.g., Callebaut Gold) |
Method
- Prepare Biscuits: Place the biscuits in a plastic bag and crush them gently by hand, avoiding creating a fine powder.
- Toast Crumbs: Stir the 60 g of melted brown butter, cinnamon, and gingerbread spice mix into the biscuit crumbs until evenly coated. Spread the mixture in a thin, flat layer on a piece of parchment paper. Bake at 175°C for approximately 8 minutes until golden and fragrant. Allow to cool completely.
- Combine Crunch: Transfer the cooled biscuit mixture to a bowl and stir in the feuilletine flakes.
- Bind: Melt the caramel chocolate and stir it into the biscuit crunch until fully bound.
- Assembly Portion: Use exactly half of the crunch mixture (approx. 140 g) and spread it over the first cake layer (in the 16 cm ring). Level the surface.
- Reserve: Set the remaining crunch mixture aside in a warm spot to prevent it from setting hard. Freeze the cake insert to set the crunch layer.
5. Toasted Marshmallow Fluff (Meringue)
| Ingredients | Weight (g) | Notes |
|---|---|---|
| Egg Whites | 165 g | (For Meringue) |
| Caster Sugar (Meringue) | 30 g | |
| Caster Sugar (Syrup) | 235 g | |
| Glucose Syrup | 135 g | |
| Water | 100 g | Equivalent of 100 ml |
| Vanilla Paste | 12.5 g | Equivalent of 2 1/2 tsp |
| Mini Marshmallows | 70 g | (Or large marshmallows cut into small pieces) |
Method
- Prepare Meringue: Whisk the egg whites until foamy. Gradually add the 30 g of sugar and continue whisking until stiff, glossy soft peaks form.
- Prepare Syrup: In a small pot, combine the 235 g of sugar, glucose syrup, and water. Heat the mixture to a precise temperature of 118°C (244°F). Remove immediately from heat.
- Combine: With the mixer running, slowly stream the 118°C syrup into the egg whites. Continue whisking until the marshmallow fluff (Italian meringue) is firm, glossy, and has cooled completely. Add the vanilla paste.
- Toasted Flavor: Weigh out 250 g of the finished marshmallow fluff for this layer. Store the remainder in an airtight container in the refrigerator for the Mousse (Step 6). Stir the 70 g of mini marshmallows into the 250 g fluff.
- Toast: Use a blowtorch to carefully toast the surface of the marshmallow fluff mixture. Stir the toasted layer into the fluff. Repeat this toasting and stirring process approximately four times to achieve a rich, deep, S’mores-like toasted flavor throughout.
- Reserve: Transfer the toasted fluff to a piping bag.
6. Assembly (Entremet Insert)
Crucial Note: To create stable layers, ensure each layer is fully set before adding the next.
- Ganache Layer: Pipe or spread a 0.7 cm thick layer of the thickened Dark Chocolate Ganache on top of the set biscuit crunch layer. Level the surface. Freeze for approximately 15 minutes.
- Marshmallow Layer 1: Pipe a 2 cm thick layer of the Toasted Marshmallow Fluff on top of the set ganache. Gently toast the surface with a blowtorch. Level the surface. Freeze for approximately 10 minutes.
- Second Cake Layer: Place the second 1.5 cm thick brown butter cake layer on top of the marshmallow fluff. Gently level the surface. Freeze for approximately 10 minutes.
- Crunch Layer: Spread the reserved half of the biscuit crunch on top of the cake. Level the surface and freeze for approximately 15 minutes.
- Ganache Layer 2: Spread or pipe a second 0.7 cm layer of Dark Chocolate Ganache on top of the set crunch. Level the surface. Freeze for approximately 15 minutes.
- Marshmallow Layer 2: Pipe a final 2 cm layer of Toasted Marshmallow Fluff on top of the set ganache. Level the surface. Carefully toast the surface with a blowtorch.
- Final Freeze: Place the entire 16 cm entremet insert in the freezer overnight until fully solid.
DAY TWO: Mousse & Entremet Construction
7. Toasted Marshmallow & Caramel Mousse
| Ingredients | Weight (g) | Notes |
|---|---|---|
| Gelatin Sheet (240 Bloom) | 7.9 g | Approximately 4 1/2 sheets, Extra Gold, bloomed |
| Caramel Chocolate (30%) | 335 g | Finely chopped (e.g., Callebaut Gold) |
| Heavy Cream (for heating) | 170 g | Approximately 165 ml |
| Heavy Cream (for whipping) | 345 g | Chilled (approximately 335 ml) |
| Sea Salt | 2.5 g | Equivalent of 1/2 tsp |
| Marshmallow Fluff (leftover) | 160 g | Room temperature (from Step 5) |
Method
- Bloom Gelatin and Melt Chocolate: Soak the gelatin in cold water. Gently melt the caramel chocolate and reserve it in a large mixing bowl.
- Toast Fluff: Weigh out 160 g of the reserved room-temperature marshmallow fluff. Use a blowtorch to toast the surface of the fluff. Stir. Repeat the toasting and stirring process approximately four times until a rich toasted S’mores flavor is achieved.
- Infuse Cream: Heat the 170 g of heavy cream and the sea salt almost to a boil. Remove from heat and whisk in the bloomed gelatin until fully dissolved. Allow to cool slightly.
- Emulsify Base: Pour the warm cream mixture over the melted caramel chocolate while stirring until the mixture is glossy and homogenous.
- Combine Bases: Gently stir the intensely toasted marshmallow fluff into the chocolate mixture. Allow the mass to cool to lukewarm (approx 28°C).
- Whip and Fold: Whip the remaining 345 g of chilled heavy cream to soft peaks. Gently fold the whipped cream into the lukewarm chocolate/marshmallow base in three additions.
8. Assembly (Final Entremet Build)
- Prepare Main Mold: Place the 18 cm silicone mold on a flat cutting board. Line the mold with a tall acetate collar.
- Pour Mousse (Main): Pour the Toasted Marshmallow & Caramel Mousse into the mold. Allow the mousse to set slightly in the refrigerator until it can form a soft peak when touched with a spoon.
- Insert Core: Retrieve the frozen 16 cm cake insert. Gently press it down into the partially set mousse, with the final toasted marshmallow layer facing downwards, until the top of the cake insert is flush with the mousse level.
- Prepare Topping Mousse: Pour a 2.5 cm layer of the remaining mousse into a 14 cm diameter round silicone mold (e.g., Silikomart Eclipse mold). Tap the mold to remove air bubbles.
- Freeze: Freeze the 18 cm entremet and the 14 cm mousse dome overnight until fully solid.
DAY THREE: Glazing, Decoration & Final Finish
9. Milk Chocolate Mirror Glaze (Cake Base)
| Ingredients | Weight (g) | Notes |
|---|---|---|
| Gelatin Sheet (240 Bloom) | 10.5 g | 6 sheets, Extra Gold, bloomed |
| Milk Chocolate (33% cocoa solids) | 150 g | Finely chopped |
| Heavy Cream (35% fat) | 103 g | Equivalent of 100 ml |
| Water | 50 g | Equivalent of 50 ml |
| Caster Sugar | 150 g | |
| Glucose Syrup | 150 g | |
| White Food Coloring Paste | – | To lighten the milk chocolate glaze |
Method
- Bloom and Chop: Soak the gelatin in ice-cold water. Chop the milk chocolate finely and place it in a large plastic pitcher.
- Prepare Syrup: In a saucepan, combine the sugar, water, heavy cream, and glucose syrup. Heat almost to a boil. Remove from heat and whisk in the bloomed gelatin.
- Emulsify Glaze: Pour the hot mixture over the chocolate in the pitcher. Blend with an immersion blender. Add white food coloring paste to achieve the desired opaque color.
- Cool and Temper: Cover the surface directly with cling film and cool the glaze to its working temperature of 34°C to 35°C.
- Glaze Cake: Remove the frozen 18 cm cake from the mold. Place it on a cooling rack over a tray. Pour the glaze over the cake. Clean the excess glaze from the bottom edge.
- Thaw and Mark: Place the glazed cake on a cake plate. Thaw in the refrigerator for approximately 7 hours. Once the glaze is set, use a 12 cm pastry ring to lightly mark the top center of the cake as a placement guide.
10. White Chocolate Mirror Glaze (Mousse Dome)
| Ingredients | Weight (g) | Notes |
|---|---|---|
| Gelatin Sheet (240 Bloom) | 5.3 g | 3 sheets, Extra Gold, bloomed |
| White Chocolate (28% cocoa solids) | 75 g | Finely chopped |
| Heavy Cream (35% fat) | 51.5 g | Equivalent of 50 ml |
| Water | 25 g | Equivalent of 25 ml |
| Caster Sugar | 75 g | |
| Glucose Syrup | 75 g | |
| White Food Coloring Paste | – | For opacity |
Method
- Prepare: Repeat the steps for the Milk Chocolate Glaze (Bloom, Chop, Prepare Syrup, Emulsify) using the white chocolate and white food coloring paste.
- Glaze Mousse: Remove the frozen 14 cm mousse dome from the mold and place it on a cooling rack. Pour the white glaze over the mousse dome. Clean the excess glaze from the bottom edge.
- Place Dome: Immediately lift the glazed mousse dome using two small palette knives and place it precisely onto the marked center of the larger cake base.
11. Chocolate Decoration (Ribbons & Plates)
| Materials | Weight (g) | Notes |
|---|---|---|
| Caramel Chocolate (30%) | 270 g | Tempered (e.g., Callebaut Gold) |
| Small White Flowers | – | For final garnish |
Dimensions (Ribbons from Tempered Caramel Chocolate)
- Ribbon 1 (Cake Base): 4 cm x 60 cm
- Ribbon 2 (Cake Base): 5 cm x 60 cm
- Ribbon 3 (Mousse Dome): 1 cm x 48 cm
- Ribbon 4 (Topping Collar): 1 cm x 35 cm
Plates (from Tempered Caramel Chocolate)
- Plate 1: 2.5 cm diameter
- Plate 2: 3 cm diameter
- Plate 3: 4 cm diameter
Method (Ribbons)
- Temper Chocolate: Temper the 270 g of caramel chocolate. Spread onto acetate sheets cut to the specified dimensions. Allow to set until flexible, wrap around forms to achieve the circular shape, and allow to fully crystallize.
- Wrap Cake Base: Carefully place Ribbon 2 (the 5 cm widest ribbon) around the 18 cm cake base. Place Ribbon 1 (4 cm) immediately above or below it. Secure the ends with a small amount of melted chocolate.
- Wrap Mousse Dome: Place Ribbon 3 (1 cm x 48 cm) around the 14 cm mousse dome.
12. Marshmallow Fluff Topping & Final Assembly
| Ingredients | Weight (g) | Notes |
|---|---|---|
| Egg Whites | 65 g | (For Meringue Topping) |
| Caster Sugar (Meringue) | 15 g | |
| Caster Sugar (Syrup) | 90 g | |
| Glucose Syrup | 50 g | |
| Water | 40 g | Equivalent of 40 ml |
| Vanilla Paste | 5 g | Equivalent of 1 tsp |
Method (Topping)
- Prepare Topping Fluff: Use the same method as in Step 5 (Toasted Marshmallow Fluff), whisking the egg whites and 15 g of sugar to soft peaks. Prepare the syrup (90 g sugar, 50 g glucose syrup, 40 g water) and heat to 118°C. Stream the syrup into the egg whites and whisk until the fluff is firm, cool, and glossy. Add 5 g of vanilla paste.
- Pipe Topping: Transfer the fluff to a piping bag fitted with a large round tip (1.8 cm). Pipe dots onto the center of the cake within the 10 cm mark.
- Toast Topping: Use a blowtorch to gently toast the surface of the marshmallow fluff until caramelized.
- Final Collar: Place Ribbon 4 (1 cm x 35 cm) around the perimeter of the toasted marshmallow topping.
- Place Plates: Place the three caramel chocolate plates (2.5 cm, 3 cm, 4 cm) into the marshmallow fluff, arranging them in a visually balanced, slightly curved composition.
- Garnish: Decorate with small white flowers. Serve immediately or store in the refrigerator.
I’m Chef Mimo, a passionate pastry chef with over 17 years of experience in the world of fine desserts. I specialize in French-style entremets, refined cakes, and creative chocolate work. Pastry is not just my profession—it’s my lifelong passion. Through PastryCrafted.com, I love sharing my recipes, techniques, and inspirations with anyone who dreams of mastering the art of pastry. Whether you’re a curious beginner or a seasoned pro, you’re welcome in my sweet world.