Vanilla Brownies

2/3 cup butter, melted
1 pound light brown sugar
3 eggs
2 2/3 cups sifted flour
2 1/2 teaspoons baking powder
1/2 teaspoon salt
2 cups semisweet chocolate chips (12 ounces)
1 cup chopped pecans

In a large bowl, add sugar to butter and blend well. Cool approximately 10 minutes.

Beat in eggs, one at a time. Add flour, baking powder, salt, chocolate chips and pecans. Mix well. Spread in a greased 15 1/2 x 10 1/2-inch pan. Bake at 350 degrees F for 25 to 30 minutes.