Banana Walnut Chocolate Chip Scones

Heat oven to 400 degrees F.

In a large mixing bowl, combine flour, sugar, baking powder, salt, and baking soda. Cut in butter with a pastry blender until the mixture resembles coarse meal. Set aside.

In a medium bowl, mix buttermilk, vanilla, egg whites and banana. Add wet mixture to dry mixture just until combined. Mix in chocolate chips.

Turn dough out on a lightly floured surface. Knead lightly. Spray a large cookie sheet with vegetable cooking spray. Pat the dough into a 9-inch circle on the cookie sheet.

Sprinkle the walnuts and brown sugar over the dough, pressing gently into the dough. Cut the dough into equal slices. Bake for 20 minutes.