Cranberry-Oatmeal Bars

  Crust:
      1           cup            all purpose flour
  1   cup   quick-cooking oats
  1/2   cup   packed brown sugar
  1/2   teaspoon   salt
  1   teaspoon   ground cinnamon
  1/2   teaspoon   baking soda
  6   tablespoons   butter, melted
  3   tablespoons   orange juice
          cooking spray
  Filling:
  1-1/3   cups   dried cranberries
  3/4   cup   sour cream  
  1/2   cup   granulated sugar  
  2   tablespoons   all purpose flour  
  1   teaspoon    pure vanilla extract  
  1/2   teaspoon    grated orange rind  
  1   large   egg white, lightly beaten  
 
1. Preheat oven to 325°.
2. To prepare crust, weigh or lightly spoon flour into a dry measuring cup; level with a knife. Combine flour and next 5 ingredients (through cinnamon) in a medium bowl, stirring well with a whisk. Drizzle butter and juice over flour mixture, stirring until moistened (mixture will be crumbly). Reserve 1/2 cup oat mixture. Press remaining oat mixture into the bottom of an 11 x 7–inch baking dish coated with cooking spray.
3. To prepare filling, combine cranberries, sour cream, granulated sugar, and remaining ingredients in a medium bowl, stirring well. Spread cranberry mixture over prepared crust; sprinkle reserved oat mixture evenly over filling. Bake at 325° for 40 minutes or until edges are golden. Cool completely in pan on a wire rack.