From KraftyKate

Guilt-Free Alfredo

Makes 6 servings at 5 points each

14-1/2 oz. chicken broth
1/4 cup flour
1/4 teaspoon garlic powder or 2 cloves minced
1/4 teaspoon pepper
1/3 cup plain, nonfat yogurt
12 oz. linguine, hot, cooked (6 cups)
6 tablespoons parmesan cheese
fresh parsley, chopped

In medium saucepan gradually mix broth into flour, garlic powder
and pepper until smooth. Over medium heat, cook until mixture
boils and tickens, stirring constantly. Remove from heat, stir in
yogurt. Toss with pasta and 4 tablespoons cheese; sprinkle with
parsley and remaining cheese.

This is really yummy!