Step #1
Preheat oven to 350 degrees F(175 degrees C).
Step #2 Grease two 9 inch round cake pans.
Step #3 Sift flour, baking powder, salt, baking soda & 1 1/2 c of the white sugar together in a large mixing bowl.
Step #4 Add 1/2 c of the shortening & 1-1/4 c of the evaporated milk.
Step #5 Beat at medium speed with an electric mixer for 2 mins.
Step #6 Beat in the eggs & beat for 2 mins longer.
Step #7 Spread the batter evenly into the prepared pans.
Step #8 Drizzle 1 square of the melted chocolate in a spiral on top of each cake.
Step #9 Feather lines with a knife to form a web pattern.
Step #10 Bake at 350 degrees F (175 degrees C) for 30 to 40 mins or until a toothpick inserted in the center comes out clean.
Step #11 Let cakes cool in pans for 10 mins then remove this from pans & let cakes cool completely.
Step #12 To Make Filling: Combine the 2 squares unsweetened melted chocolate, 1 1/3 c shortening, 1 c white sugar, 3/4 c evaporated milk & the vanilla together & beat with an electric mixer until smooth.
Step #13 To Assemble Cake: Cut each cooled cake layer in half horizontally.
Step #14 Spread 1/4 of the filling between each layer making a 4 layer cake with a web design on top.