Marbled Pecan Pound Cake
["1/2 c. butter, softened", "1/2 c. shortening", "3 c. sugar", "5 large eggs", "3 c. all-purpose flour", "1/2 tsp. baking powder", "1/4 tsp. salt", "1 c. milk", "1 tsp. vanilla", "1 (1 oz.) sq. unsweetened chocolate", "1 Tbsp. shortening", "1/2 c. chopped pecans"]
["Beat butter and 1/2 cup shortening at medium speed with electric mixer about 2 minutes or until creamy. Gradually add sugar, beating at medium speed 5 to 7 minutes. Add eggs one at a time, beating just until yellow disappears. Combine flour, baking powder and salt; add to butter mixture alternately with milk, beginning and ending with flour mixture. Mix at low speed just until blended after each addition. Stir in vanilla."]
["butter", "shortening", "sugar", "eggs", "all-purpose", "baking powder", "salt", "milk", "vanilla", "unsweetened chocolate", "shortening", "pecans"]