Description
A soft, vibrant blue sponge cake rolled with a rich cream cheese filling and topped with silky white chocolate ganache, blueberry buttercream, and fresh berries. It’s an elegant dessert perfect for special occasions or a stunning centerpiece.
Ingredients
Scale
- 4 large eggs (room temperature)
- ¾ cup granulated sugar
- 2 tbsp vegetable oil
- 1 tsp vanilla extract
- 1 tbsp buttermilk
- 1 cup all-purpose flour (sifted)
- 1 tsp baking powder
- ⅛ tsp salt
- 1 tsp white vinegar
- Blue food coloring (gel type preferred)
- 1 tbsp blueberry jam (optional, for extra flavor)
- 1 cup (225 g) cream cheese, softened
- ½ cup (115 g) unsalted butter, softened
- 1 tsp vanilla extract
- 1½ cups (180 g) powdered sugar
- 2 tbsp heavy cream
- 200 g white chocolate, chopped
- 100 ml heavy cream
- 1 tbsp butter
- Blue buttercream (made from vanilla frosting tinted with blue gel color)
- Fresh blueberries
- Chocolate truffles or Ferrero-style chocolates
- Powdered sugar (for dusting)
Instructions
- Preheat your oven to 350°F (175°C). Line a 10×15-inch (25×38 cm) jelly roll pan with parchment paper.
- In a bowl, beat eggs and sugar together for about 5 minutes until thick, pale, and fluffy.
- Mix in oil, vanilla, buttermilk, and vinegar.
- Sift in flour, baking powder, and salt. Fold gently until smooth.
- Add blue food coloring and (optional) blueberry jam, adjusting to achieve your desired shade.
- Spread the batter evenly into the prepared pan and bake for 10–12 minutes, until just set and springy.
- While warm, flip the cake onto a clean towel dusted with powdered sugar.
- Carefully peel off the parchment paper and roll the cake with the towel inside (short side). Let it cool completely.
- Beat cream cheese and butter until smooth and creamy.
- Add vanilla and powdered sugar, mixing until fluffy.
- Add heavy cream to loosen the texture if needed.
- Unroll the cooled sponge carefully.
- Spread an even layer of the cream cheese filling.
- Roll it back tightly (without the towel) and wrap in plastic wrap.
- Chill for 1 hour to set.
- Heat heavy cream until steaming, pour over white chocolate, and let sit for 1 minute.
- Stir until smooth, then add butter for gloss.
- Pour over the chilled cake and smooth the top.
- Pipe blue buttercream swirls on top.
- Add fresh blueberries and chocolate truffles.
- Dust lightly with powdered sugar for a frosty finish.
Notes
- Ensure all ingredients are at room temperature for best results.
- Use gel food coloring for a more vibrant color.
- Chill the roll for longer if you prefer a firmer texture.
- Prep Time: 25 minutes
- Cook Time: 12 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 320
- Sugar: 25g
- Sodium: 150mg
- Fat: 18g
- Saturated Fat: 10g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 70mg