Roux takes just a few minutes to make. the proportions of ingredients are the same: 1 part oil and 1 part all-purpose flour.
2 cups elbow pasta cooked in chicken broth
1 stick butter
1 8 oz cream cheese(not lowfat)
1/2 cup sour cream
2 cups milk more are less
1/4 parmesan cheese
salt and pepper to taste
1 pound extra-sharp cheddar cheese (or sharp, grated)
used a cup cheese in mixture and a cup on top
place in a per heated oven 350 degrees oven until bubbly about 15 minutes