Lethal Layer Bars

I got this recipe from a book I was reading. I can't remember the author but the character she wrote about was a chef and at the end of the book she included a few recipes that were mentioned in the book and this was one of them. They are so delicious.

1/2 c. butter
1/2 c. brown sugar
1 c. flour
1 c. pecans
2 eggs
1 c. brown sugar
1 tsp. vanilla
1/2 tsp. salt
1 tsp. baking powder
Additional Flour
1 c. chocolate chips

Preheat oven to 375

Combine the butter, brown sugar and flour until crumbly. Press into a 9x13 pan and bake for 10 mins. Let cool. Spread pecans over the crust.

Beat the eggs, brown sugar and vanilla. Place the salt and baking powder in a 1/4 measuring cup. Fill the rest of the measuring cup with flour. Combine this with the egg mixture. Pour over the pecans and top with the chocolate chips. Bake for 20 mins.