- Ready In:
- Preheat to 350°F.
- In a sauce pan, on medium heat, melt butter, stir in flour, and add the mile gradually, stirring constantly, until thickened.
- Remove from heat, and stir in salt, pepper, onions, and barbecue sauce, stir in cheese until melted.
- Place a layer of half the potato slices in a 8x8 casserole dish. Pour half the sauce over the potatoes. Repeat.
- Bake for 25 minutes.
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