Toffee Bars - cooking recipe

Ingredients

1 c. butter
1 tsp. vanilla
1 c. brown sugar
2 c. flour
1 egg yolk
6 regular size Hershey bars

Preparation

Cream butter, sugar and egg yolk.
Add vanilla.
Sift flour; add and mix well.
Bake in cookie pan (do not grease) for 15 to 20 minutes at 350\u00b0.
While still hot, top with 6 regular size Hershey bars.
When melted, spread to frost.
Cut into squares.