Two Berry Coffee Cake

Bahan-bahan (12 porsi)

• 1½ cups granulated white sugar
• 3/4 cup (1½ sticks) butter, (at room temperature)
• 4 large eggs
• 1 teaspoon vanilla extract
• 3 cups all purpose flour
• 1½ teaspoons baking powder
• 3/4 teaspoon baking soda
• 1/4 teaspoon salt
• 1 cup sour cream
• 1/4 cup packed brown sugar
• 1 tablespoon all purpose flour
• 1/2 teaspoon ground cinnamon
• 1 cup fresh blueberries
• 1 cup fresh raspberries, (halved)