Ingredients

• 4 eggs
• 1 filling
• 2 1/4 c sugar
• 2 1/2 c all purpose flour
• 1 c semisweet chocolate chips
• 1 c vegetable oil
• 1 1/4 c walnuts (chopped)
• 1/2 c butter
• 1/2 c packed brown sugar
• 1/2 c baking cocoa
• 2 tb milk
• 3 ts vanilla extract
• 1 tb shortening
• 1/2 ts salt