Chocolate and sweet potato batters are swirled together to make this moist, tender spice cake from Patricia Polley of Columbus, Ohio. Wrap and store the cooled cake overnight for easier slicing. (It's a great alternative to coffee cake for brunches.)

Source: Midwest Living


Recipe Summary

35 mins
55 mins at 350°
15 mins


Ingredient Checklist


Instructions Checklist
  • Grease and lightly flour a 10-inch fluted tube pan; set aside. In a large bowl, combine flour, cinnamon, baking powder, baking soda, ginger, salt, cloves and nutmeg. Set aside.

Instructions Checklist
  • In a very large mixing bowl, beat sweet potatoes and oil with an electric mixer on medium speed until combined. Beat in eggs and vanilla until well combined. Beat in sugar. Add flour mixture, beating until combined. Fold in walnuts and cranberries.

Instructions Checklist
Instructions Checklist
Instructions Checklist
  • Transfer one-third (about 2-1/2 cups) of the batter to a large bowl; stir in melted chocolate. Spoon half of the remaining plain batter into the prepared tube pan. Spoon chocolate batter over batter in pan. Spoon remaining plain batter over chocolate batter. Gently draw a table knife or thin metal spatula through the batters to marble them slightly.

Instructions Checklist
  • Bake in a 350° oven for 55 to 65 minutes or until a wooden skewer inserted in center of cake comes out clean. Cool cake in pan on a wire rack for 15 minutes; invert cake onto a wire rack. Cool completely.

Instructions Checklist
Instructions Checklist
  • If you like, sift powdered sugar over cake just before serving.


For 2 cups mashed, plain sweet potatoes, peel 1 pound sweet potatoes. Cut into 2- to 3-inch pieces. Cook potato pieces, covered, in enough boiling water to cover for 20 to 25 minutes or until potatoes are tender. Drain well. Mash with a potato masher or beat with an electric mixer until smooth.

Nutrition Facts

478 calories; total fat 29g; saturated fat 5g; polyunsaturated fat 16g; monounsaturated fat 7g; cholesterol 53mg; sodium 456mg; potassium 217mg; carbohydrates 51g; fiber 3g; sugar 25g; protein 4g; vitamin a 6317IU; vitamin c 6mg; thiaminmg; riboflavinmg; niacin equivalents 2mg; vitamin b6mg; folate 60mcg; vitamin b12mcg; calcium 61mg; iron 3mg.