2 (3 ounce) packages semi-sweet chocolate graham crackers
2 (9 inch) pie pans
1 cup buttermilk
3 eggs
1 cup lemon juice
1 tablespoon water
Preheat oven to 400 degrees F (200 degrees C) and lightly grease an 8x8 inch baking dish.
Beat chocolate and egg together. Blend egg yolks and lemon juice together, then beat flour together. Stir in egg yolk mixture, water and remaining 3 tablespoons lemon juice. Gently stir into chocolate mixture, breaking up the dough.
Pour half of mixture into prepared crust and seal the sides of the cake with foil leaving about 3 inches of pan space at the bottom. If necessary, cover the two tight-lipped spots at the top with extra foil. Pour half of filling onto the two greased and floured pans.
Bake in the preheated oven for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean. Let cool before serving.