Toffee Bars

1 cup butter, softened

1 cup brown sugar

1 egg yolk

1 tsp. vanilla

2 cups flour

¼ tsp. salt

1 (12 oz.) pkg. semisweet chocolate chips

Preheat oven to 350°.

Cream butter, sugar and egg yolk.  Add vanilla.  Mix in flour and salt; stir well.

Spread dough in a greased and floured 9X13 inch pan.  Bake for 20 minutes.

Remove from oven and sprinkle with chocolate chips while hot.

Return to oven for 1 minute.  Remove and spread melted chocolate evenly over the top of the bars.

Let cool before cutting into squares.