In bowl, with mixer at high speed, beat sugar and margarine until creamy. At medium speed, blend in molasses, egg and yogurt until smooth.

 

Combine flour, baking soda and cinnamon; stir into molasses mixture with carrot, walnuts and raisins.

 

Drop dough by Tbsp about 2" apart onto greased and floured baking sheets. Bake at 375 degrees F for 8 to 10 minutes or until lightly browned. Remove from baking sheet; cool on wire rack.

 

Blend powdered sugar and water until smooth. Drizzle icing over prepared cookies and sprinkle with additional chopped nuts.