Sweet Potato Muffins
["1/2 c. butter", "1 1/4 c. sugar", "2 eggs", "1 1/4 c. canned sweet potatoes, mashed", "1 1/2 c. all-purpose flour", "2 tsp. baking powder", "1/4 tsp. salt", "1 tsp. cinnamon", "1/4 tsp. nutmeg", "1 c. milk", "1/4 c. chopped pecans or walnuts", "1/2 c. chopped raisins"]
["Preheat oven to 400\u00b0.", "Grease 1 1/2-inch muffin tin.", "Cream butter and sugar.", "Add eggs and mix well.", "Blend in sweet potatoes.", "Sift flour with baking powder, salt, cinnamon and nutmeg; add alternately with milk.", "Do not overmix.", "Fold in nuts and raisins."]
["butter", "sugar", "eggs", "sweet potatoes", "flour", "baking powder", "salt", "cinnamon", "nutmeg", "milk", "pecans", "raisins"]