Kue Terbalik Blueberry Lemon

Bahan-bahan (8 porsi)

• 4 tablespoons mentega tawar
• ½ cup gula pasir
• 2 teaspoons lemon zest
• 1 tablespoon fresh lemon juice
• 2½ cups blueberry segar
• 1½ cups all-purpose flour
• 1½ teaspoon baking powder
• ½ teaspoon garam
• 1/2 cup unsalted butter, (softened)
• 1 cup gula pasir
• 2 large telur
• 1 tablespoon lemon zest
• 1 teaspoon ekstrak vanila
• ½ teaspoon ekstrak lemon