1 (112 oz.) pkg. semi-sweet chocolate pieces
1/4 c. butter
2 1/2 c. graham crumbs
1 1/2 c. chopped walnuts
1 (14 oz.) can sweetened condensed milk
1 tsp. vanilla

In a double boiler over hot water, melt chocolate and butter until smooth. Grease a 12 x 8 baking dish. Combine crumbs and walnuts. Stir in milk and vanilla, then chocolate mix. Pat evenly. Let stand at room temperature 2 hours. Cut and serve.

Yield 24 brownies.