For Bars:
  * 1 cup softened butter
  * 1/2 cup granulated sugar
  * 1/2 cup light brown sugar
  * 2 egg yolks (slightly beaten with 1 tbsp water)
  * 1 tsp vanilla extract
  * 2 cups sifted flour
  * 1/4 tsp baking soda
  * 1 tsp baking powder
  * 1/4 tsp salt
  * 1 (12-oz) package semisweet chocolate chips

For Topping:
  * 2 egg whites
  * 1 cup light brown sugar


Servings: Makes 24

Active Time: 25 min

Total Time: 50 min (plus cooling time)

directions:

  - Preheat oven to 350°F.
  - In a large mixing bowl, with an electric mixer on high speed, beat butter until creamy. Add sugars and beat well. Beat in egg yolks and vanilla extract.
  - In a separate bowl, sift together flour, baking soda, baking powder, and salt. Add to creamed mixture. Dough will be stiff.
  - Press dough flat onto a greased 10-by-14-inch baking sheet, cover with chocolate chips, and bake for 10 minutes.
  - Reduce oven heat to 325°F. Make meringue topping: Beat egg whites until very stiff; add brown sugar and beat well.
  - Spread meringue across top of dough (don't spread all the way to edges).
  - Return to oven for 12 to 15 minutes or until meringue is very light brown and dough is set.
  - Let cool; cut into bars.



Makes 24. Per Serving: 260 calories, 34g carbs, 2g protein, 12g fat, 40mg cholesterol, 130mg sodium, 2g fiber

source: http://www.dashrecipes.com/recipes/dr/c/chocolate-chip-halfway-cookies.html