Cute Lemon Vanilla Mousse Cakes

Cute Lemon Vanilla Mousse Cakes 🍋 is a medium French recipe that serves 9. 250 calories per serving. Recipe by Sunday Baking on YouTube.

Prep: 3 hrs 21 min | Cook: 44 min | Total: 4 hrs 35 min

Cost: $35.29 total, $3.92 per serving

Ingredients

  • 2 g Gelatin Sheet (Soaked in cold water for 5 minutes)
  • 65 g Granulated Sugar (For lemon‑lime cremeux)
  • 1 piece Lemon (Zest only; zest about 1 tsp)
  • 1 piece Lime (Zest only; zest about 1 tsp)
  • 55 g Lemon Juice (Freshly squeezed)
  • 25 g Lime Juice (Freshly squeezed)
  • 100 g Eggs (Approximately 2 large eggs, room temperature)
  • 20 g Egg Yolk (One extra yolk, room temperature)
  • 75 g Unsalted Butter (Cut into cubes, added to warm cremeux)
  • 50 g Powdered Sugar (For almond sponge batter)
  • 60 g Almond Powder (Also called almond flour; for almond sponge)
  • 22 g All-Purpose Flour (For almond sponge; sifted)
  • 60 g Egg Whites (About 2 large egg whites, room temperature)
  • 1 pinch Salt (For almond sponge)
  • 20 g Granulated Sugar (For meringue (egg whites))
  • 250 g Unsalted Butter (For cookie base dough, softened)
  • 120 g Powdered Sugar (For cookie base dough)
  • 50 g Egg (One large egg, room temperature)
  • 4 g Vanilla Extract (Pure vanilla extract)
  • 80 g Almond Powder (For cookie base dough)
  • 300 g All-Purpose Flour (For cookie base dough)
  • 70 g Milk (Whole milk, heated)
  • 0.5 piece Vanilla Bean (Half bean split, seeds scraped (or 3 g vanilla paste))
  • 60 g White Chocolate (For vanilla mousse; chopped)
  • 150 g Heavy Cream (Chilled, whipped to soft peaks)
  • 280 g White Chocolate (For glaze; tempered)
  • 60 g Cocoa Butter (For glaze; melted)
  • 10 g Yellow Cocoa Butter Coloring (Food‑grade coloring for glaze)

Instructions

  1. Soak Gelatin Sheets

    Place the 2 g gelatin sheet for the cremeux and the 3 g sheet for the mousse in separate bowls of cold water. Let sit for 5 minutes until softened.

    Time: PT5M

  2. Prepare Lemon‑Lime Cremeux Base

    In a saucepan combine lemon juice, lime juice, 65 g granulated sugar, lemon zest, and lime zest. Stir over medium heat until sugar dissolves.

    Time: PT5M

    Temperature: Medium heat

  3. Cook Cremeux to 83 °C

    Whisk together 100 g eggs and 20 g extra yolk. Slowly pour the hot citrus mixture into the eggs while whisking, then return to the saucepan. Cook, stirring constantly, until the mixture reaches 83 °C on an instant‑read thermometer.

    Time: PT5M

    Temperature: 83°C

  4. Strain and Finish Cremeux

    Pass the hot custard through a fine mesh sieve into a clean bowl. Stir in the softened gelatin sheet (from step 1) until fully dissolved, then add 75 g butter and whisk until the butter melts completely.

    Time: PT4M

  5. Cool and Freeze Cremeux

    Allow the lemon‑lime cremeux to come to room temperature, then cover and place in the freezer until solid (about 30 minutes).

    Time: PT30M

  6. Make Almond Sponge Batter

    In a mixing bowl whisk together 100 g eggs, 50 g powdered sugar, and 60 g almond powder until light. Sift 22 g flour and fold in gently. In a separate bowl, whisk 60 g egg whites with a pinch of salt and 20 g granulated sugar to soft peaks, then fold into the batter without deflating.

    Time: PT10M

  7. Bake Almond Sponge

    Preheat the oven to 375 °F. Spoon the batter onto a parchment‑lined baking sheet, using a 5.8 cm round cutter to shape nine circles. Bake for 10–12 minutes, until lightly golden and springy to the touch.

    Time: PT12M

    Temperature: 375°F

  8. Prepare Vanilla Mousse

    Heat 70 g milk with the scraped seeds of half a vanilla bean (or 3 g vanilla paste) until just hot (≈80 °C). Remove from heat, add the bloomed 3 g gelatin sheet and stir until dissolved. Melt 60 g white chocolate into the milk, then let cool slightly. Whip 150 g heavy cream to soft peaks and fold into the chocolate‑vanilla mixture.

    Time: PT10M

  9. Assemble the Petit Gâteaux

    Fit a piping bag with a plain tip, fill with the vanilla mousse, and pipe halfway into each SF164 globe mold. Add a frozen lemon‑lime cremeux disc (cut to fit) on top, then place one almond sponge circle. Smooth the top with a spatula.

    Time: PT15M

  10. Freeze Assembled Cakes

    Cover the molds and place them in the freezer until completely solid, about 30 minutes.

    Time: PT30M

  11. Temper White Chocolate for Decorations

    Melt 280 g white chocolate in a heatproof bowl over simmering water. Stir until smooth, then cool to about 30 °C before spreading thinly onto an acetate sheet. Let set until firm, then break into shards and hearts using the 7 cm cutter.

    Time: PT15M

  12. Make Yellow Cocoa‑Butter Glaze

    Melt 280 g white chocolate together with 60 g cocoa butter. Stir in 10 g yellow cocoa‑butter coloring and bring the glaze to 35–38 °C. Quickly dip each frozen cake into the glaze, allowing excess to drip off.

    Time: PT10M

    Temperature: 35–38°C

  13. Finish and Decorate

    Place glazed cakes on a cooling rack. Press a few white‑chocolate shards onto each cake, add a touch of gold leaf if desired, and let set at room temperature for 5 minutes.

    Time: PT5M

Nutrition Facts

Calories
250
Protein
3 g
Carbohydrates
30 g
Fat
15 g
Fiber
1 g

Dietary info: Vegetarian, Contains nuts, Contains gluten

Allergens: Eggs, Milk, Almonds, Wheat

Last updated: August 8, 2026

Amazon Associates

Amazon Associates PartnerTrusted

As an Amazon Associate, we earn from qualifying purchases made through links on this page. This helps support our site at no extra cost to you. Clicking on ingredient or equipment links will take you to amazon.com where you can purchase these items.

Cute Lemon Vanilla Mousse Cakes 🍋

Recipe by Sunday Baking

A summer‑ready French‑style petit gâteau featuring a tangy lemon‑lime cremeux, almond sponge, silky vanilla mousse, and crisp white‑chocolate decorations, all assembled in silicone molds and finished with a glossy yellow cocoa‑butter glaze.

MediumFrenchServes 9

Shop all ingredients on Amazon in one click • Printable PDF with shopping checklist

Source Video
2h 4m
Prep
32m
Cook
19m
Cleanup
2h 55m
Total

Cost Breakdown

$35.29
Total cost
$3.92
Per serving

Critical Success Points

  • Soak gelatin sheets
  • Cook cremeux to precise temperature
  • Bake almond sponge without overbaking
  • Temper white chocolate correctly
  • Glaze at 35–38°C

Safety Warnings

  • Hot sugar and custard can cause severe burns; handle with care.
  • Use a thermometer to avoid overheating the custard past 85 °C.
  • When tempering chocolate, ensure all utensils are completely dry.

Frequently Asked Questions

Everything you need to know about this recipe

Q

What is the cultural significance and history of Lemon Petit Gâteau in French pastry tradition?

A

The petit gâteau, meaning “small cake,” originated in French patisserie as a bite‑size treat often served with tea or coffee. Lemon variations became popular in the summer months for their bright, refreshing flavor, reflecting France’s love of citrus desserts dating back to the 19th century.

cultural
Q

What are the traditional regional variations of lemon‑flavored petit gâteaux in French cuisine?

A

In Provence, lemon petit gâteaux are often flavored with lavender or orange blossom water, while in the Loire Valley they may include a thin layer of almond frangipane. The version on Sunday Baking adds a lime note and a vanilla mousse, creating a modern twist.

cultural
Q

How is a lemon petit gâteau traditionally served in French cafés?

A

Traditionally it is presented on a small porcelain plate, sometimes dusted with powdered sugar and accompanied by a dollop of lightly sweetened whipped cream or a shot of espresso on the side.

cultural
Q

What occasions or celebrations is Lemon Petit Gâteau traditionally associated with in French culture?

A

Petits gâteaux are common at garden parties, bridal showers, and summer fêtes. The lemon version is especially favored for warm weather gatherings because its citrus profile feels light and refreshing.

cultural
Q

How does Lemon Petit Gâteau fit into the broader French pastry tradition?

A

It exemplifies the French emphasis on layered textures—crisp sponge, silky mousse, and glossy glaze—while showcasing classic techniques such as custard‑based cremeux and chocolate tempering that are hallmarks of French patisserie.

cultural
Q

What are the authentic traditional ingredients for a French lemon petit gâteau versus acceptable substitutes?

A

Authentic ingredients include fresh lemon zest, real vanilla bean, high‑quality white chocolate, and French butter. Acceptable substitutes are vanilla extract for the bean, good‑quality confectioners’ sugar for powdered sugar, and a reputable brand of white chocolate if specialty chocolate is unavailable.

cultural
Q

What other French desserts pair well with Lemon Petit Gâteau?

A

Lemon petit gâteau pairs beautifully with a classic Crème Anglaise, a light fruit sorbet (such as raspberry), or a glass of chilled Champagne or a citrus‑infused sparkling wine.

cultural
Q

What makes Lemon Petit Gâteau special or unique in French pastry cuisine?

A

The combination of a tangy lemon‑lime cremeux, almond sponge, and airy vanilla mousse creates a multi‑layered flavor and texture experience rarely found in a single bite‑size cake, making it a standout modern French dessert.

cultural
Q

What are the most common mistakes to avoid when making Lemon Petit Gâteau at home?

A

Common errors include overheating the custard (which causes curdling), over‑whipping the almond sponge batter (leading to a dense cake), and tempering the white chocolate at the wrong temperature, which results in a dull, crumbly glaze.

technical
Q

Why does this Lemon Petit Gâteau recipe use gelatin sheets instead of powdered gelatin?

A

Gelatin sheets dissolve more evenly and give a smoother texture to the cremeux and mousse, which is essential for the delicate mouthfeel of a petit gâteau. Powdered gelatin can sometimes leave a grainy finish if not fully hydrated.

technical
Q

Can I make Lemon Petit Gâteau ahead of time and how should I store it?

A

Yes. Prepare the lemon‑lime cremeux and vanilla mousse up to the freezing step, then store each component in airtight containers in the freezer. Assemble and glaze the cakes no more than a few hours before serving; keep glazed cakes refrigerated.

technical
Q

What does the YouTube channel Sunday Baking specialize in?

A

The YouTube channel Sunday Baking specializes in approachable, home‑cooked pastry recipes with a focus on seasonal flavors, clear step‑by‑step demonstrations, and creative uses of silicone molds.

channel
Q

How does the YouTube channel Sunday Baking's approach to French pastry differ from other French cooking channels?

A

Sunday Baking emphasizes practical home‑kitchen techniques, often using readily available equipment and offering troubleshooting tips for common mistakes, whereas many French pastry channels focus on professional‑level precision and advanced equipment.

channel

You Might Also Like

Similar recipes converted from YouTube cooking videos

Easy Lemon Mousse
17

Easy Lemon Mousse

A light, tangy and creamy lemon mousse, ideal to finish a Ramadan meal. It is prepared in less than an hour, requires few ingredients and keeps refrigerated for several days.

1 hr 10 minServes 4$6
French
Vanilla Cupcakes with Buttercream
19

Vanilla Cupcakes with Buttercream

Moist vanilla cupcakes, easy to make, topped with a smooth buttercream. Perfect for snack time, birthdays or any occasion where you want to impress with few ingredients and minimal effort.

1 hr 31 minServes 12$2
French
Fluffy Vanilla Cinnamon Pancakes
15

Fluffy Vanilla Cinnamon Pancakes

Light and airy pancakes flavored with vanilla and cinnamon, perfect for a cozy breakfast. The batter is folded with whipped egg whites for extra fluffiness and served with maple syrup or your favorite toppings.

1 hr 11 minServes 4$2
French
Vanilla Mousse (Egg Yolk Glaze Base)
22

Vanilla Mousse (Egg Yolk Glaze Base)

A light, airy vanilla mousse made with a silky egg‑yolk glaze (on‑glaze) and folded with softly‑whipped cream. The gelatin gives just enough stability for serving in jars or as a molded cake. Perfect for a elegant dessert that can be topped with fresh berries, fruit compote, or chocolate crumbs.

1 hr 13 minServes 6$6
French
Chocolate Vanilla Mousse
27

Chocolate Vanilla Mousse

A light, airy chocolate mousse with a bright vanilla note. Made by melting bittersweet chocolate with butter, then folding in a silky egg‑yolk custard and fluffy egg‑white meringue. Chill overnight for perfect set and serve with a dollop of lightly sweetened whipped cream and a sprinkle of flaky sea salt.

58 minServes 6$9
American
Ultimate Lemon Pound Cake at Grandbaby-Cakes.com
58

Ultimate Lemon Pound Cake at Grandbaby-Cakes.com

A moist, buttery lemon pound cake packed with fresh lemon zest, juice, and a secret sour‑cream boost, finished with a tangy lemon glaze. Perfect for tea time, celebrations, or any moment you need a burst of citrus flavor.

1 hr 31 minServes 10$7
American
Claire Saffitz Makes the Fluffiest Lemon Ricotta Pancakes
336

Claire Saffitz Makes the Fluffiest Lemon Ricotta Pancakes

Fluffy, cloud‑like pancakes that combine the bright citrus of lemon with the creamy richness of strained ricotta. Lightened with a mountain of whipped egg whites, these Japanese‑inspired soufflé pancakes are tall, tender, and only lightly sweetened—perfect for a special breakfast or a winter‑time treat.

3 hrsServes 4$6
American Fusion
Super Moist Vanilla Cupcakes
18

Super Moist Vanilla Cupcakes

Fluffy, moist vanilla cupcakes that contain no milk, butter, or eggs. Made with simple pantry ingredients, these cupcakes are vegan‑friendly and perfect for any celebration.

45 minServes 12$8
American