Three Layer Bars

Mom has been making these at Christmas time for as long as I can remember.  This makes a pretty big batch--enough to pass around on cookie platters and still eat them for weeks.  She usually cuts them into small 2 inch squares since they are pretty rich.

Three Layer Bars
Makes two 8 x 16 pans

First layer:
2 cup butter
1 cup sugar
1 cup unsweetened cocoa powder
1 cup milk
4 eggs, slightly beaten
4 teaspoon vanilla
80 graham crackers (one 2 lb box), ground into graham cracker crumbs
14 oz flaked sweetened coconut
3 cups finely chopped walnuts

In a large saucepan melt butter, and stir in cocoa and sugar until smooth.  Add milk.  Bring to a boil. Blend a little milk mixture into the eggs, stir, and return all the eggs to the milk mixture, stirring until slightly thick.  Add vanilla.  Stir in graham cracker crumbs, coconut, and nuts.  Press into two 8 x 16 pans.

Second layer:
1 1/2 cup butter
6 cups powdered sugar
4 tablespoons milk
4 tablespoons vanilla

In a bowl cream butter and powdered sugar until fluffy.  Blend in the milk and vanilla.  Spread over the first layer.  Chill 15 minutes in the refrigerator.

Third layer:
1 cup chocolate chips
1/2 cup butter
6 tablespoons milk
coarsely chopped walnuts to sprinkle on top

In a saucepan combine chocolate chips, butter, and milk.  Heat over low heat.  Stir constantly until smooth.  Spread over the second layer and sprinkle with chopped walnuts.  Chill.  Cut each pan into bars.