Congo Bars

3/4 c. melted butter
1 pound brown sugar
2 eggs
1 teaspoon vanilla
2 1/2 c. flour -- sifted
2 1/2 tsp. baking powder
1 t. salt
1 c. chopped pecans
12 oz. semisweet or milk chocolate chips

Sift together dry ingredients and set aside.
In a large bowl, combine butter and brown sugar. Add eggs one at a time, beating well after each. Add vanilla. Add dry ingredients to sugar mixture. Add nuts and chocolate chips. Turn dough into greased 13 X 9 greased pan.
Bake at 350 for 22-25 minutes (watch carefully, DON'T overbake)