Here's a pretty simple carrot muffin recipe I have:
Carrot Muffins
1 1/2 c White sugar
1 1/4 c Corn oil
3 Eggs
3 c Flour
2 ts Baking powder
1 1/2 ts Baking soda
1/4 ts Salt
2 ts Cinnamon
2 c Grated carrots
Preheat oven to 345 degrees F. Cream sugar and oil, add eggs one at a time, beat well after each. Add dry ingredients and mix well. Stir in carrots, pour into prepared pans and bake 20 -25 minutes or until center springs back when touched.
You can add raisins if you like them.