Cranberry Orange Muffins

Every week I like to make something sweet to put into dh's lunch box.  

Cranberry Orange Muffins

1 cup sugar
1 egg
1/2 cup milk
1/2 cup sour cream
1/3 cup vegetable oil
2 1/4 cups flour
2 tsp baking powder
1 tsp baking soda
1/2 tsp. salt
1 1/2 cups craisins
1 tbsp. orange zest, finely grated

1.  In a mixing bowl, beat together sugar and egg.  Add milk, sour cream and oil.
2.  In another bowl, combine flour, baking powder, baking soda and salt.  Add to wet ingredients just until blended.  Fold in craisins and orange zest.
3.  Pour batter into greased or paper-lined muffin cups.  Bake at 375 for 15 to 18 minutes or until muffins test done.