Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 400°F (200°C) and coat an 8-inch square baking dish with non-stick spray.
- Peel and slice the russet potatoes into ¼ inch thick rounds. If using, slice the onion thinly and layer them with the potatoes.
- In a medium saucepan, melt butter over medium-low heat, whisk in flour and a pinch of salt until bubbly. Cook for about one minute.
- Gradually pour in warmed whole milk, stirring constantly until the sauce thickens, about 3-5 minutes.
- Remove from heat and stir in shredded cheddar cheese until completely melted and smooth.
- Pour the cheese sauce over the layered potatoes and onions, ensuring all layers are coated.
- Cover with aluminum foil and bake for 90 minutes. Check tenderness with a fork.
- If desired, broil for an additional 3-5 minutes to achieve a golden top, watching closely.
Nutrition
Notes
Consider adding cooked bacon or different cheeses for variations. Let the dish rest for 10-15 minutes before serving.
