Description
A soft lemon cake with juicy blueberries and creamy mascarpone frosting—bright, fluffy, and bursting with citrus flavor. Perfect for spring celebrations.
Ingredients
- 2 ½ cups all-purpose flour
- 3 teaspoons baking powder
- ½ teaspoon salt
- 1 cup granulated sugar
- ½ cup vegetable oil
- 3 large eggs
- 2 tablespoons lemon zest (from about 2 lemons)
- ¼ cup fresh lemon juice
- 1 teaspoon vanilla extract
- ½ cup sour cream or plain yogurt
- 1 cup buttermilk or milk with 1 teaspoon lemon juice
- 1 ½ cups fresh blueberries (tossed in 1 tablespoon flour)
- 1 cup mascarpone cheese, cold
- 2 ¼ cups heavy whipping cream
- 1 cup powdered sugar
- 1 teaspoon vanilla extract
- 2 tablespoons lemon juice
- ½ cup lemon curd or blueberry jam (Optional Filling)
- Fresh blueberries (For Garnish)
- Lemon zest or thin lemon slices (For Garnish)
Instructions
- Preheat oven to 350°F. Grease and line two 8-inch round cake pans with parchment paper.
- Whisk flour, baking powder, and salt in a medium bowl. Set aside.
- Whisk sugar, oil, eggs, lemon zest, lemon juice, vanilla, and sour cream in a large bowl until smooth.
- Gradually add half the flour mixture, then half the milk. Repeat until both are fully combined. Mix gently.
- Toss blueberries in flour and fold into the batter with a spatula.
- Divide batter evenly between pans and bake 25–28 minutes. Toothpick inserted in the center must come out clean. Let cool completely.
- Beat mascarpone cheese in a chilled mixing bowl until creamy. Slowly pour in heavy cream while beating on low until thickened. Add powdered sugar, vanilla, and lemon juice. Whip on high until stiff peaks form.
- Place one cake layer on a stand. Spread a thin layer of lemon curd or blueberry jam, then add a layer of mascarpone frosting. Top with the second cake layer. Frost the entire cake with remaining frosting.
- Garnish with fresh blueberries and lemon zest. Chill for 30 minutes before serving.
Notes
- Refrigerate the frosted cake and serve slightly chilled for the best texture.
- Use fresh blueberries for even distribution in the batter.
- Prep Time: 25 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American