Heat oven to 350. Grease and flour two layer pans, 9x 4 cm. Blend Dry ingredie nts in large mixing bowl. Add shortening, buttermilk, vanilla. Beat 2 min. medi um speed on mixer. Scrape sides and bottom of bowl often. Add eggs and melted c hocolate. Beat 2 more min. Bake in prepared pans 30 to 35 min. Cool; frost with Chucklet Frosting.