Cinnamon Scone Bread

Name: Cinnamon Scone Bread
Ingredients: For the streusel filling:; 4 tablespoons all-purpose flour; 4 tablespoons granulated sugar; 4 tablespoons brown sugar; 2 teaspoons cinnamon; 1 tablespoon heavy cream; For the bread:; 2 1/2 cups (11 1/4 ounces or 319 grams) all-purpose unbleached flour; 1/4 cup granulated sugar, plus more for sprinkling on top of loaf; 1 tablespoon baking powder; 3/4 teaspoon kosher salt; 6 tablespoons chilled unsalted butter, cut into cubes; 1/2 cup currants; 1/2 teaspoon cinnamon, cocoa powder, or espresso powder; 1 cup heavy cream, plus more for brushing on dough; 1 large egg; 1 1/2 teaspoons pure vanilla extract