1 cup butter
2 cups flour
1 tsp vanilla
1 cup firmly packed brown sugar
1 egg yolk
8 oz semi-sweet chocolate chips
1/2 cup finely chopped walnuts or pistachios
Preheat oven to 350F.
Use a food processor or mixer to combine butter, flour,
brown sugar and egg yolk.
Press into an ungreased 10x15-inch pan. Bake 15 minutes.
Remove from the oven; sprinkle with chips. Let stand several minutes to melt
chocolate; spread chocolate evenly over the surface. Sprinkle with nuts.
piece of waxed paper; press gently to make nuts adhere. Score into bars while
chill to harden chocolate.