This recipe is from Shirley McNevich's Mom's Best Recipes Vol 1. Published here with her permission.
Don't forget to check Shirley's blog.
1/2 box Domino's Powdered Sugar (1 lb. size)
1 stick Parkay margarine
2 tsp imitation vanilla
1.5 TBSP milk
Feed in mixer. The longer you beat it the creamier it gets. Use food
coloring to make the color you desire.
For chocolate frosting, add 2 level TBSP Hershey's Cocoa.