Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 400°F (200°C) and spray a baking dish with non-stick cooking spray.
- Peel and slice russet potatoes into ¼ inch rounds. If using onion, slice thinly. Layer them alternately in the baking dish.
- In a medium saucepan, melt butter over medium-low heat. Whisk in flour and salt until bubbly, about 1 minute.
- Gradually pour in warmed milk while stirring until the sauce thickens, about 3-5 minutes.
- Remove from heat and stir in cheese until melted and smooth.
- Pour cheese sauce over layered potatoes and onions, cover with foil, and bake for 90 minutes.
- Check for tenderness, remove foil, and broil for 3-5 minutes until golden.
Nutrition
Notes
Ensure potato slices are uniform for even cooking. Let the dish rest after baking for easier serving.
