Grease a 9x13 pan. Preheat oven to 350 degrees.
In Cuiinart, stir together flour, sugar and cocoa. Cut in butter until the mixture resembles coarse crumbs. Add egg. Mix well. Reserve 1 1/2 cups.
Press remaining into pan. Bake 10 minutes.
Meanwhile, microwave sweetened condensed milk and 1 cup chocolate chips. Stir, cook, until melted. Pour over crust.
Add nuts and remaining chips to reserved crumb mixture. Sprinkle over top. Bake an additional 25-30 minutes or until center is almost set. Cool completely.
In Cuiinart, stir together flour, sugar and cocoa. Cut in butter until the mixture resembles coarse crumbs. Add egg. Mix well. Reserve 1 1/2 cups.
Press remaining into pan. Bake 10 minutes.
Meanwhile, microwave sweetened condensed milk and 1 cup chocolate chips. Stir, cook, until melted. Pour over crust.
Add nuts and remaining chips to reserved crumb mixture. Sprinkle over top. Bake an additional 25-30 minutes or until center is almost set. Cool completely.

