This is my Grandma Grace's recipe - I tried to relay it to you as uncomplicated as possible, but if you come across something you don't understand, leave a comment and I'll try to figure it out for you!
Combine in a medium bowl:
1-3/4 cups flour
1 cup sugar
1/4 cup cocoa
Cut in 1 stick butter or shortening. Mix until crumbly.
Add 1 beaten egg. Mix.
Set aside 1-1/2 cups of the mixture and add 1 cup chocolate chips.
Place the remainder in a greased 9x13 dish.
Bake 10 minutes.
In a sucepan combine 1 can sweetened condensed milk, 1 cup chocolate chips. Heat and stir until melted and smooth.
Spread over crust.
Sprinkle on chopped nuts (as desired).
Sprinkle on the remaining flour and sugar mixture.
Bake about 25 minutes at 350 degrees or until center is set.
(sidenote: one year, right after thanksgiving, my GG (grandma grace) invited my sisters and mom over for a cookie making day. we made trays and trays of different kinds of cookies. she hand wrote 5 of each of the recipes for each of us. there had to have been 7 different kinds, too. as i read this card i truly appreciate the work that went into each card. and now i have a little bit of her each time i make them! thanks, GG)