Heart-Shaped 500k Subscriber Celebration Cake
Heart‑Shaped 500k Subscriber Celebration Cake is a medium French recipe that serves 8. 460 calories per serving. Recipe by JustInCooking on YouTube.
Prep: 1 hr 12 min | Cook: 24 min | Total: 2 hrs 12 min
Cost: $20.15 total, $2.52 per serving
Ingredients
- 4 pieces Large eggs (room temperature)
- 120 g Granulated sugar (for genoise)
- 100 g All‑purpose flour (sifted twice)
- 200 g White chocolate (pâtissier) (chopped)
- 390 g Heavy cream (divided: 140 g for infusion, 150 g cold, remainder for ganache)
- 1 piece Vanilla bean (Madagascar, Bourbon Gold) (split lengthwise, seeds scraped)
- 300 g Passion‑fruit puree (divided for crémeux, caramel and decoration)
- 100 g Granulated sugar (for crémeux)
- 50 g Unsalted butter (very cold, diced)
- 2 sheets Gelatin sheets (about 4 g total, re‑hydrated in cold water)
- 150 g Granulated sugar (for caramel)
- 100 g Heavy cream (for caramel)
- 1 pinch Fleur de sel
- as needed Meringues (optional, for decoration) (different sizes, homemade or store‑bought)
- as needed Macarons (optional, for decoration) (various colours)
Instructions
Make the genoise batter
In the mixing bowl, crack the 4 eggs, add 120 g sugar and whisk on high speed until the mixture turns pale, triples in volume and forms a ribbon (about 8 minutes).
Time: PT8M
Incorporate flour
Sift 100 g flour twice over the batter and fold gently with a silicone spatula in two additions, being careful not to deflate the foam.
Time: PT2M
Bake the genoise
Line a baking sheet with parchment, spread the batter evenly, and bake in a pre‑heated 180 °C oven (convection) for 12 minutes.
Time: PT12M
Temperature: 180°C
Cool and cut hearts
Allow the genoise to cool completely on a rack, then place an A4 heart template on top, trace around with a sharp knife, remove the template and cut out the heart shape. Repeat to obtain two hearts.
Time: PT10M
Melt white chocolate
Place the 200 g chopped white chocolate in a microwave‑safe bowl and melt in 30‑second bursts, stirring between each, until smooth (≈3 minutes).
Time: PT3M
Infuse cream with vanilla
In a saucepan, combine 140 g heavy cream, the scraped vanilla seeds and the split pod. Bring to a gentle boil, then remove from heat and discard the pod.
Time: PT4M
Create white‑chocolate ganache
Pour the hot vanilla‑infused cream over the melted chocolate in three portions, stirring with a spatula after each addition until fully incorporated and glossy.
Time: PT3M
Finish ganache with cold cream
Add the remaining 150 g cold cream in three portions, mixing gently each time until the ganache is homogeneous and slightly thickened.
Time: PT2M
Chill ganache
Cover the ganache with plastic wrap (in contact) and refrigerate for at least 4 hours or overnight.
Time: PT0M
Rehydrate gelatin
Place 2 gelatin sheets in a bowl of cold water and let soften for 5 minutes.
Time: PT5M
Heat passion‑fruit puree with sugar
In a saucepan, combine 200 g passion‑fruit puree with 100 g granulated sugar. Bring to a boil, then remove from heat.
Time: PT4M
Cook crémeux (custard base)
Return the mixture to the saucepan and cook over medium heat, stirring constantly, until the temperature reaches 84 °C (use a thermometer). The mixture will thicken slightly.
Time: PT6M
Temperature: 84°C
Add gelatin
Remove the custard from heat, add the squeezed gelatin sheets and stir until fully dissolved.
Time: PT1M
Blend in butter
Allow the mixture to cool to about 40 °C, then transfer to a mixing bowl, add the 50 g cold butter diced, and blend with a hand mixer until smooth and glossy.
Time: PT3M
Temperature: 40°C
Chill crémeux
Cover with plastic wrap, press onto the surface, and refrigerate for at least 3 hours or overnight.
Time: PT0M
Make passion‑fruit caramel
In a thick‑bottomed saucepan, melt 150 g granulated sugar over medium‑low heat, swirling the pan (no spoon) until it turns a deep amber colour.
Time: PT6M
Incorporate cream into caramel
Very carefully add 100 g hot cream to the amber sugar (it will bubble violently). Stir with a silicone spatula until fully incorporated.
Time: PT1M
Add passion‑fruit puree
Stir in the remaining 100 g hot passion‑fruit puree and continue mixing for 1 minute.
Time: PT1M
Finish caramel with butter and salt
Reduce heat to low, add 30 g butter diced and a pinch of fleur de sel. Stir until the butter melts and the sauce is smooth.
Time: PT2M
Cool caramel
Transfer the caramel to a heat‑proof bowl, let it reach room temperature (about 10 minutes).
Time: PT10M
Prepare piping bags
Fit one bag with a 13 mm plain tip for the ganache, another with a 10 mm tip for the crémeux, and a third with a small tip for the caramel.
Time: PT2M
Assemble first layer
Place one heart‑shaped genoise on a serving plate. Pipe a thin border of white‑chocolate ganache around the edge, then pipe a ring of passion‑fruit crémeux inside the border. Fill the centre with a small amount of caramel, then pipe additional ganache over the caramel to seal.
Time: PT10M
Add second layer
Place the second heart on top, press gently, then repeat the piping sequence (ganache border, crémeux interior, optional caramel spots) to create a uniform look.
Time: PT10M
Chill assembled cake
Refrigerate the assembled cake for 15 minutes to set the fillings.
Time: PT0M
Decorate
Pipe decorative swirls of ganache, place meringues of varying sizes, arrange macarons, scatter edible flowers, mango cubes, kumquats, and fresh passion‑fruit seeds. Use a small brush to paint colour gradients on the meringues if desired.
Time: PT12M
Final chill before serving
Cover the cake loosely with plastic wrap and chill for another 15 minutes. Serve at room temperature.
Time: PT0M
Nutrition Facts
- Calories
- 460
- Protein
- 5 g
- Carbohydrates
- 55 g
- Fat
- 20 g
- Fiber
- 2 g
Dietary info: Vegetarian, Contains dairy, Contains gluten
Allergens: Eggs, Milk, Gluten
Ingredient Substitutions
- Instead of Large eggs: egg replacer (not recommended)
- Instead of Granulated sugar (for genoise): caster sugar
- Instead of All‑purpose flour: cake flour
- Instead of White chocolate (pâtissier): good quality white chocolate
- Instead of Heavy cream: half‑and‑half (less rich)
- Instead of Vanilla bean (Madagascar, Bourbon Gold): vanilla extract, 1 tsp
- Instead of Passion‑fruit puree: fresh passion‑fruit pulp
- Instead of Granulated sugar (for crémeux): caster sugar
- Instead of Unsalted butter: plant‑based butter
- Instead of Gelatin sheets: agar‑agar (different texture)
- Instead of Granulated sugar (for caramel): light brown sugar
- Instead of Heavy cream (for caramel): full‑fat milk (less rich)
- Instead of Fleur de sel: sea salt
- Instead of Meringues (optional, for decoration): Swiss meringue buttercream
- Instead of Macarons (optional, for decoration): colored buttercream piped cookies
Equipment Needed
- Stand mixer or hand mixer
- Large mixing bowl
- Spatula (silicone)
- Sieve
- Baking sheet
- Parchment paper
- Oven
- Kitchen scale
- Thermometer (instant‑read)
- Saucepan (heavy‑bottom)
- Micro‑wave safe bowl (optional)
- Piping bags
- Round piping tips (13 mm & 10 mm)
- Heart‑shaped template (A4 size)
- Sharp knife
- Cooling rack (optional)
Critical Steps — Do Not Skip
- Achieving ribbon stage when whisking eggs and sugar.
- Folding flour without deflating the batter.
- Baking the genoise just until springy (12 min at 180 °C).
- Temperatures for the crémeux custard (84 °C) and caramel colour.
- Properly hydrating gelatin and incorporating it without lumps.
- Handling hot caramel to avoid burns.
Chef Tips from the Video
- Use a kitchen torch to lightly toast the meringues for extra crunch.
- For a more intense vanilla flavour, split the bean and scrape both seeds and pod into the cream.
- If you prefer a less tart centre, replace half of the passion‑fruit puree in the caramel with orange juice.
Troubleshooting
Genoise collapsed after baking.
Do not over‑mix after adding flour; ensure the egg‑sugar mixture reached full ribbon stage before folding. Also, avoid opening the oven door early.
Ganache is grainy.
Make sure the chocolate is fully melted and the cream is hot enough when combined. If grainy, gently re‑heat over a bain‑marie while whisking.
Crémeux is too runny after chilling.
Check that the gelatin was fully dissolved and that the custard reached the correct temperature. Add an extra half sheet of gelatin if needed.
Caramel hardened too quickly.
Re‑heat the caramel gently over low heat, adding a splash of cream to loosen it before piping.
Storage
Refrigerator: Store the assembled cake, covered, for up to 2 days. Ganache and crémeux stay fresh.
Freezer: Unassembled genoise layers freeze well for up to 1 month; wrap tightly in plastic and foil.
Room temperature: Do not keep at room temperature longer than 4 hours due to dairy fillings.
Make-Ahead Tips
- Bake and cut the genoise a day ahead; keep wrapped in plastic.
- Ganache and crémeux can be prepared 24 hours in advance and kept chilled.
- Caramel can be made the night before; re‑warm gently before piping.
Last updated: August 20, 2026






