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:

1. Preheat oven to 350°F.
2. 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.
3. In a separate bowl, sift together flour, baking soda, baking powder, and salt. Add to creamed mixture. Dough will be stiff.
4. Press dough flat onto a greased 10-by-14-inch baking sheet, cover with chocolate chips, and bake for 10 minutes.
5. Reduce oven heat to 325°F. Make meringue topping: Beat egg whites until very stiff; add brown sugar and beat well.
6. Spread meringue across top of dough (don't spread all the way to edges).
7. Return to oven for 12 to 15 minutes or until meringue is very light brown and dough is set.
8. 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