Billie's Italian Cream Cake with Blueberries

INGREDIENTS

• 1 cup buttermilk (or 1 cup milk mixed with1 teaspoon white vinegar)
• 1 tablespoon vanilla extract
• 1 cup vegetable oil
• 2 pounds powdered sugar
• 1 cup granulated sugar
• 5 eggs, separated
• 1 cup sweetened flaked coconut
• 1 1/2 pints or 3 small containers blueberries
• 2 cups all-purpose flour
• 1 stick butter
• 1 cup chopped pecans
• 1 teaspoon baking soda
• 1 teaspoon baking powder
• 2 teaspoons vanilla extract
• Two 8-ounce packages cream cheese