Au Gratin Potatoe recipe?

How do i make au gratin potatoes without using flour ?





Something similar to this recipe





INGREDIENTS


4 potatoes, sliced into 1/4 inch slices


1 onion, sliced into rings


salt and pepper to taste


3 tablespoons butter


3 tablespoons all-purpose flour


1/2 teaspoon salt


2 cups milk


1 1/2 cups shredded Cheddar cheeseAu Gratin Potatoe recipe?
tighten the sauce with corn starch slurry instead of flour roux.Au Gratin Potatoe recipe?
AU-GRATIN POTATOES





2 lbs. Southern Style hash browns


1/4 c. melted butter


1 pt. sour cream


1 can cream of chicken soup


1/2 c. chopped onions


1 pkg. Cheddar cheese





Combine all ingredients, except cheese. Spread onto greased cake pan. Top with Cheddar cheese. Bake 40 minutes at 350 degrees.
Thicken it with corn starch and water or milk.
regular flour would work also sounds and looks loike your on the right track