Combine first 6 ingredients in large mixing bowl. Stir until well mixed.
Add shortening, eggs, milk and vanilla. Beat 3 minutes on low speed, scraping sides as needed.
Grease 2 (9”) round cake pans and line bottom with wax paper. Pour batter into pans. Bake 350 for 30-35 minutes or until wooden toothpick comes out clean. Cool in pans. Remove from pans and let completely cool.
Split cake layers in half horizontally to make 4 layers. Make fine crumbs using 1 cake layer. Set crumbs aside.
Beat whipping cream until foamy. Gradually add powdered sugar, beating until soft peaks form.
Place 1 cake layer on cake platter; spread with 1 c. of whipped topping and top with ¾ c. of cherry pie filling. Repeat with second layer and top the third cake layer.
Frost sides and top with whipped cream, reserving a small amount for garnish.
Pat cake crumbs generously around sides of cake (there may be some leftover.)
Spoon or pipe whipped cream around top of cake.
Spoon remaining pie filling on center of top.
Chill well.
Recipe by Geaux Ask Alice! at https://geauxaskalice.com/grandmas-black-forest-cake/