COOKIE BASE:

2 c. finely crushed vanilla wafers (approx. 50 wafers)
1/4 c. firmly packed brown sugar
1/3 c. butter, melted

Preheat oven to 350 degrees. In bowl combine vanilla wafer crumbs and brown sugar. Stir in butter. Press into 13 x 9 inch baking pan and bake for 8 minutes.

TOFFEE LAYER:

1/2 c. butter
1 (6 oz.) pkg. semi-sweet chocolate chips
1/2 c. firmly packed brown sugar
1/2 c. finely chopped nuts