Toffee Bars

Directions

1. 1
   Cream butter, brown sugar, egg yolk and vanilla.
2. 2
   Add flour and mix well.
3. 3
   Stir in chocolate chips and walnuts.
4. 4
   Put in ungreased 15 1/2 x 10 1/2 x 1-inch baking pan.
5. 5
   Bake at 350° for 18 to 20 minutes.
6. 6
   While warm, cut in bars.
7. 7
   Cool.
8. 8
   Makes 48 bars.