- 3 cups all-purpose flour
- 2 teaspoons baking soda
- 2 teaspoons baking powder
- 2 teaspoons ground cinnamon
- 2 teaspoons ground nutmeg
- 1/2 teaspoon salt
- 1 1/2 cups butter
- 1 1/2 cups white sugar
- 3 eggs
- 1/2 cup molasses
- 1 tablespoon vanilla extract
- 3 cups cooked mashed sweet potatoes
- 1 1/2 cups sweetened dried cranberries (such as Craisins®)
- 1 cup chopped walnuts
- Preheat oven to 350 degrees F (175 degrees C). Grease and flour two 9-inch round baking pans.
- Sift flour, baking soda, baking powder, cinnamon, nutmeg, and salt together in a bowl.
- Beat butter and sugar together in a separate large bowl with an electric mixer until light and fluffy. Beat one egg at a time into the butter mixture; add molasses and vanilla extract with last egg. Add sweet potatoes, cranberries, and walnuts; mix until batter is thoroughly combined. Gradually beat flour mixture into batter until thoroughly combined. Pour batter into prepared baking pans.
- Bake in preheated oven until a toothpick inserted into the center comes out clean, about 1 hour 10 minutes. Cool in the pans for 10 minutes before turning out onto wire rack to cool completely.