MUD BARS

3/4 cup packed brown sugar
1 stick butter, softened
1 large egg
1 tsp vanilla extract
1/2 tsp baking soda
1/4 tsp salt
1 cup + 2 tbsp all-purpose flour
1 cup (6-oz pkg) semisweet chocolate chips, divided
1 cup (6-oz pkg) white chocolate chips, divided
1/2 cup chopped pecans or walnuts

Preheat oven to 375 degrees.
Line a 9-inch square pan with foil letting ends extended for lifting. Spray foil with nonstick cooking spray.

Combine brown sugar and butter in large mixer bowl; beat at medium speed 2 minutes or until creamy. Beat in egg and vanilla until well blended. Beat in baking soda and salt.

Add flour to mixture and stir until blended. Stir in 2/3 cup each of the chips and the nuts. Spread batter into pan.

Bake at 375 for 23 to 25 minutes or until center is firm to the touch. Do not overbake!

Sprinkle remaining chips over the hot bars; let stand until chips soften then spread over the top of the bars.

Cool completely on a wire rack before cutting into 16 bars to serve.

I do not have a picture of this recipe so I found this similar one on the internet.