Chocolate Chip Cookie Bars

I wanted something quick and classic for a potluck at work. This recipe did the trick. They were cakey and had plenty of chocolate chips (I used jumbo semi-sweet chips)- a perfect dessert after sampling a lot of other delicious foods. 

Ingredients

1 1/2 cups all-purpose flour
1/4 teaspoon baking powder 
1/4 tsp. baking soda
1/2 teaspoon salt  
1/2 cup melted margarine
3/8 cup brown sugar 
3/8 cup granulated sugar 
1 egg 
1 teaspoon vanilla 
1 cup chocolate chips

Instructions
Preheat the oven to 350 degrees.
Mix flour, baking powder, baking soda, and salt together, and set aside.
In a large bowl, mix both sugars and melted butter. Add egg and vanilla and stir just until blended. Add flour mixture and stir just until mixed. Stir in chocolate chips. 
Pour into a 8x8 baking pan.
Bake for 25 minutes until bars start to pull away from the sides of the pan, and they turn a golden brown.
Cool completely before slicing with a plastic knife.
Yields 16 servings