L's By-Cracky Bars:

3 scant and sifted cups flour (scant means slightly less than a cup) **I also sift the flour so I don't get too much flour packed down in the cup.
1 1/2 tsp salt
1/2 tsp soda
3/4 cup butter
3/4 cup shortening
2 cups sugar
4 eggs
2/3 cup milk
2 tsp vanilla
2 packages choc chips (I mix milk choc and semi sweet or only use semi-sweet)
2 oz unsweetened chocolate

Mix the sugar, shortening, butter, soda, salt, eggs, and vanilla. Add in the flour and milk alternately. Stir in the chocolate chips. Spray a large cookie sheet with Pam (non-stick spray). Put half the batter in the bottom of the cookie sheet. On top of the batter layer with graham crackers. They don't have to be close together. It usually takes about a package and a little bit more, depending on how you lay out the crackers. To the remaining half of the batter, add the unsweetened chocolate. For 2 ozs it is: 1 Tbs oil and 3 level Tbs unsweetened cocoa powder mixed together. Stir in the choc mix and then put by spoonfuls on top of the graham crackers. Bake at 350 for 20-25 minutes depending on your oven. DO NOT OVERBAKE!! Cut when cool. These stay soft and are very gooey and moist.