TEXAS RANCH STYLE COOKIES

1 lb brown sugar
1 1/2 sticks margarine
3 eggs
2 2/3 cups all-purpose flour
2 1/2 teaspoons baking powder
pinch salt
1 teaspoon vanilla
1 (6 oz) pkg chocolate chips
1 cup pecans, chopped
Grease and flour a 10x15-inch baking pan.
Preheat oven to 325°.
In large heavy saucepan melt 1 lb brown sugar and 1 1/2 sticks margarine over low heat. Cool slightly.
Add eggs one at a time, mixing well after each addition. Add 2 2/3 cups flour, 2 1/2 teaspoons baking powder and pinch of salt. Mix well. Add 1 teaspoon vanilla, 1 (6 oz) pkg chocolate chips and 1 cup chopped pecans. Mix well.
Spread batter into greased pan and bake at 325° for 25 minutes. Cool and cut into bars.