One Pan Toffee Bars

Directions

1. 1
   Mix brown sugar, margarine, vanilla and egg yolk with fork in ungreased 13 x 9-inch pan.
2. 2
   Stir in baking
3. 3
   mix until moistened, mix will be crumbly.
4. 4
   Press mixture evenly in pan.
5. 5
   Bake until light and brown, about 16 to 18 minutes.
6. 6
   Immediately sprinkle chocolate chips over top.
7. 7
   Let stand until chips are softened. Spread evenly over top.
8. 8
   Sprinkle with nuts.
9. 9
   Cut into bars.