Lemon Raspberry Dream Cake Perfect Birthday Cake

Ingredients

• 2 1/2 cups (300g) all-purpose flour, plus more for dusting
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1 cup (227g) unsalted butter, softened
• 1 3/4 cups (350g) granulated sugar
• Zest of 2 lemons
• 3 large eggs
• 1 teaspoon vanilla extract
• 1 cup (240ml) buttermilk
• 2 tablespoons lemon juice
• 1 pint (2 cups or 284g) fresh raspberries
• 1/2 cup (100g) granulated sugar
• 1 tablespoon lemon juice
• 1 teaspoon pectin (optional, for a firmer jam)
• 5 large egg whites
• 1 1/4 cups (250g) granulated sugar
• 1 1/2 cups (340g) unsalted butter, softened and cut into cubes
• Fresh raspberries
• Lemon slices
• Edible flowers