1 stick butter, softened
1 cup packed brown sugar
1 tsp vanilla extract
2 cups all-purpose flour
1 pkg (6-oz) semi-sweet chocolate chips
1/2 cup chopped pecans
Preheat oven to 350 degrees.
In a large mixing bowl beat the margarine and brown sugar together until light and fluffy; blend in the egg and vanilla extract. Add the flour and mix together well. Spread the dough onto a 15 x 10 x 1-inch jelly roll pan. Bake at 350 degrees 20 to 25 minutes until lightly browned.
Remove from oven and immediately sprinkle the chocolate chips over the entire top of the baked bars and let stand for several minutes. As chocolate chips melt, spread over the top and sprinkle with the pecans. Cool then cut into 42 bars.