Dark Chocolate Cake with White Chocolate and Mascarpone Frosting
Dark Chocolate Cake with White Chocolate and Mascarpone Frosting is a medium French recipe that serves 8. 350 calories per serving. Recipe by Oum Arwa on YouTube.
Prep: 7 min | Cook: 50 min | Total: 1 hr 7 min
Cost: $11.56 total, $1.44 per serving
Ingredients
- 200 g Dark baking chocolate 52% cocoa (cut into pieces)
- 120 g Unsalted butter (at room temperature)
- 110 g Granulated sugar
- 3 Eggs (medium to large size)
- 1 pinch Salt
- 1 packet Vanilla sugar or vanilla extract (or 1 tsp vanilla extract)
- 11 g Baking powder
- 100 g All-purpose flour (sift)
- 150 g White chocolate (cut into pieces)
- 150 ml Liquid cream 30% fat
- 2 tbsp Mascarpone (about 30 g)
- 100 g Fresh raspberries (optional) (for garnish)
- 30 g Toasted sliced almonds (optional)
Instructions
Preheat the oven
Turn on the fan‑assisted oven to 180 °C before starting the preparation.
Time: PT2M
Temperature: 180°C
Mix eggs, sugar, salt and vanilla
In the large bowl, beat the 3 eggs with 110 g sugar, a pinch of salt and the packet of vanilla sugar until the mixture lightens.
Time: PT1M
Fold in flour and leavening
Sift 100 g flour with 11 g baking powder, then add them to the previous mixture. Stir gently until homogeneous.
Time: PT2M
Melt chocolate and butter
Place the 200 g dark chocolate and 120 g butter in a saucepan over a bain‑marie or microwave (30 s intervals) until smooth.
Time: PT3M
Combine melted chocolate with the batter
Pour the chocolate‑butter mixture into the batter and gently fold with a spatula until smooth.
Time: PT1M
Prepare the pan
Butter the 20 cm pan, lightly dust with flour and line the bottom with parchment paper.
Time: PT2M
Bake the cake
Pour the batter into the pan and bake for 35 minutes. Check doneness by inserting a knife in the centre: it should come out clean.
Time: PT35M
Temperature: 180°C
Cooling
Let the cake rest for 15 minutes in the pan, then unmold onto a rack to cool completely.
Time: PT15M
Prepare the frosting
In a small saucepan, melt 150 g white chocolate with 150 ml liquid cream over a bain‑marie until a smooth sauce forms.
Time: PT5M
Add the mascarpone
Stir in 2 tbsp mascarpone into the chocolate‑cream mixture and whisk until creamy.
Time: PT2M
Frost the cake
Pour the frosting over the cooled cake, spread evenly with a spatula.
Time: PT3M
Final decoration
Decorate as desired with raspberries, toasted sliced almonds, gold leaf or grated dark chocolate.
Time: PT5M
Nutrition Facts
- Calories
- 350
- Protein
- 5 g
- Carbohydrates
- 40 g
- Fat
- 20 g
- Fiber
- 3 g
Dietary info: vegetarian, low-calorie
Allergens: eggs, milk, gluten
Ingredient Substitutions
- Instead of Dark baking chocolate 52% cocoa: 60% cocoa dark chocolate
- Instead of Unsalted butter: Margarine
- Instead of Granulated sugar: cane sugar
- Instead of Eggs: Apple sauce puree (for vegan version)
- Instead of Vanilla sugar or vanilla extract: Almond extract
- Instead of Baking powder: Leavening powder
- Instead of All-purpose flour: Whole wheat flour
- Instead of White chocolate: Milk chocolate
- Instead of Liquid cream 30% fat: Heavy cream
- Instead of Mascarpone: 0% fresh cheese
- Instead of Fresh raspberries (optional): Frozen red berries
- Instead of Toasted sliced almonds (optional): Pecans
Equipment Needed
- Large bowl
- Whisk or electric mixer
- Sieve (optional)
- Bain‑marie saucepan or microwave‑safe bowl
- Silicone spatula
- 20 cm cake pan
- Parchment paper (optional)
- Oven
- Cooling rack
- Small saucepan for the frosting
- Tablespoon
- Knife or dough cutter (optional)
Critical Steps — Do Not Skip
- Melt the chocolate and butter without burning them
- Mix the batter without creating lumps
- Precise baking for 35 minutes at 180 °C
- Allow the cake to cool completely before applying the frosting
- Achieve the right frosting consistency with mascarpone
Chef Tips from the Video
- Use high‑quality couverture chocolate: it gives a glossy texture and intense flavor.
- Let the butter soften at room temperature before melting to avoid splattering.
- Sifting the flour and leavening ensures an airy batter.
- For an ultra‑smooth finish, strain the frosting through a sieve before pouring.
Troubleshooting
The cake is too dense
Check that the baking powder is fresh and do not overmix the batter after adding the flour.
The frosting is too thick
Gently warm the frosting over a bain‑marie and add an extra tablespoon of liquid cream.
The frosting is separating
Remove the heat immediately, whisk vigorously and add the mascarpone before the mixture cools too much.
Storage
Refrigerator: Store the cake covered for 3‑4 days in the refrigerator.
Freezer: Wrap tightly and freeze for up to 2 months.
Room temperature: At room temperature, the cake keeps for 1‑2 days if well covered.
Make-Ahead Tips
- Prepare the cake the day before and keep it in the refrigerator; gently reheat before frosting.
- The frosting can be made ahead and stored in the refrigerator; gently reheat before use.
Last updated: August 20, 2026





