Microwave flour, butter and milk in large microwavable bowl on HIGH for 6-8 minutes, whisking every 2 minutes, or until sauce is slightly thickened. Stir in blue cheese and salt, until sauce is smooth.
Layer half the potatoes in a 13 x 9 inch baking dish, sprayed with cooking spray. Top with half the cheese sauce. Top with remaining potatoes and sauce. Cover with foil.
Bake at 425°F for 30 minutes. Remove foil and bake an additional 45 minutes, or until potatoes are tender.
Slice potatoes as thin as possible, so they cook quickly and evenly.
Serving Size 1/2 cup
* Nutrition information is estimated based on the ingredients and cooking instructions as described in each recipe and is intended to be used for informational purposes only. Please note that nutrition details may vary based on methods of preparation, origin and freshness of ingredients used.
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