High-fiber Cookies

Ingredients

• oat bran
  1 cup
• rolled oats
  1 cup
• Fiber One cereal
  1 cup
• Kellog's bran flakes
  1 cup
• seedless raisins
  1 cup
• chopped English walnuts
  1 cup
• sugar
  ¾ cup
• brown sugar
  ¾ cup
• margarine (2 sticks)
  1 cup
• egg whites
  2 large
• vanilla
  2 tsp
• all purpose flour
  2 cups
• baking powder
  1 tsp
• baking soda
  1 tsp
• salt
  ½ tsp
• water at room temp
  ½ cup