Dream Bars

Directions

1. 1
   Put oven rack in middle position and preheat oven to 350F.
2. 2
   Grease a 13- by 9- by 2-inch baking pan and line bottom and sides with wax paper, then butter paper.
3. 3
   Spread brownie batter evenly in pan.
4. 4
   Whisk together flour, baking soda, and salt in a small bowl.
5. 5
   Beat together butter and sugars in a large bowl with an electric mixer at high speed until pale and fluffy, 2 to 3 minutes.
6. 6
   Lightly beat 1 egg with a fork in a small bowl and add 1 3/4 tablespoons of it plus remaining whole egg to butter mixture, beating with mixer until creamy.
7. 7
   Beat in vanilla.
8. 8
   Reduce speed to low and mix in flour mixture until just blended, then stir in chips.
9. 9
   Top brownie batter evenly with spoonfuls of cookie dough, spreading gently with back of spoon to form an even layer.
10. 10
    Bake until a wooden pick or skewer inserted in center comes out with moist crumbs adhering, about 1 1/4 hours.
11. 11
    Cool completely in pan on a rack, about 2 hours.
12. 12
    Invert onto a cutting board, remove paper, and cut into bars.