Methods
Step 1 :
Preheat oven 350 degrees F Greased & flour a 9×13 inch cake pan.
2nd step :
Sift flour, cocoa, baking soda, baking powder and salt.
Step 3 :
Blending shortening, sugar and creamed eggs in a large bowl. Stir the sourdough into the sourdough. Slowly add flour mixture to creamed mixture, beating until smooth. Stirring in water also vanilla; blend well. Pour batter to prepared pan.
Step 4 :
Baking in preheated oven until toothpick inserted in center comes out clean, for 35 mn
Enjoy !