Blueberry Apple Crisp

Bahan-bahan (8 porsi)

• 3 cups fresh blueberries
• 3 cups very tart apples (Granny Smith), (peeled & cored & sliced)
• 1 cup firmly packed brown sugar
• 1 cup all purpose flour
• 3/4 cup granulated white sugar
• 1 teaspoon baking powder
• 3/4 teaspoon salt
• 1 large egg, (beaten)
• 1/3 cup butter, (melted)
• 1/2 teaspoon ground cinnamon
• fresh, sweet whipped cream