Sweet Irish Soda Bread

INGREDIENTS

• 5 cups sifted all-purpose unbleached flour
• 3/4 cup sugar
• 2 teaspoons baking powder
• 1 1/2 teaspoons salt
• 1 teaspoon baking soda
• 1/4 pound (1 stick) butter
• 2 1/2 cups mixed light and dark raisins, soaked in water for 15-20 minutes and drained
• 3 tablespoons caraway seeds
• 2 1/2 cups buttermilk
• 1 large egg, slightly beaten
• Turbinado sugar for sprinkling