Diabetic Sour Cream Muffins

1/4c Diet margarine
3/4c Imitation sour cream or sour half & half
1 1/3 c  All purpose flour
Non nutritive sweetener to equal 1/2 cup sugar
1/2 ts Baking soda
1/4 ts Salt
dash Nutmeg
1 Egg, beaten


Preheat oven to 450 degrees F.  Cream margarine;add sour cream; mix well.  Sift dry ingredients.  Add alternately with egg to first mixture. Spoon into greased muffin tins; bake for 15 minutes.