Kue Lemon Raspberry

Bahan-bahan (10 porsi)

• 1 ½ cups granulated sugar
• zest of 2 lemons
• 2 ¼ cups cake flour (divided)
• 2 teaspoons baking powder
• ½ teaspoon baking soda
• ½ teaspoon salt
• 1 cup buttermilk
• ¼ cup fresh lemon juice
• 1 teaspoon vanilla
• ½ cup vegetable oil
• 4 egg whites
• 1 ½ cup fresh or frozen raspberries
• ½ cup raspberry jam
• 1 tablespoon lemon zest
• 1 cup unsalted butter (room temperature)
• 4 cups powdered sugar
• 1 tablespoon lemon zest
• 1 teaspoon vanilla extract
• 3 -5 tablespoons heavy whipping cream