Pumpkin cake with spiced and ground walnuts. From series Pumpkin season. Recipe: 1 cup sugar; ½ cup vegetable oil; 1 cup pumpkin puree; 1/2 teaspoon vanilla extract; 2 eggs; 1 cup flour; 1 ½ teaspoons baking powder; 1 teaspoon baking soda; 1/8 teaspoon salt; 2 teaspoons ground cinnamon; 1/2 teaspoon nutmeg; 2 tablespoon ground walnuts