I tend to think of pumpkin muffins as a fall seasonal treat, but the truth is that with canned pumpkin, you can enjoy these easy muffins all year round.
In a large bowl, mix together the flour, sugar, baking powder, salt, cinnamon, cloves and nutmeg. Stir in the raisins and chopped nuts.
In another bowl, beat together the milk, pumpkin, egg and oil until the mixture is smooth. Add this to the dry ingredients. Stir it together just until everything is moistened.
Bake in a preheated 400°F (200°C) oven for 20 minutes or until the muffin tops spring back when they are lightly touched. You can also test doneness by inserting a toothpick or thin metal tester into the muffins. When it comes out clean, they are done.