1 (6oz.) pkg. chocolate chips
17 graham crackers, rolled fine
1 (15 oz.) can condensed milk
1/4 c. finely chopped walnuts

Preheat oven to 325 degrees. Place ingredients in large bowl and mix well. Pour into well-greased and floured 8x8 square pan.

Bake about 35 minutes until golden brown and springs back to touch. Allow to cool a bit before cutting in squares. Remove immediately from pan.