INGREDIENTS:
4 cups thinly sliced potatoes
3 tbsp butter
1 1⁄2 cups milk
3 tbsp all-purpose flour
1 cup grated sharp cheddar cheese
1⁄2 cup grated cheese (cheddar or Gruyere) for topping
Salt to taste
1/2 cup sliced green onions (optional)
Pinch of cayenne pepper (optional)
DIRECTIONS:
Preheat oven to 375°F (190°C). Grease a baking dish.
In a saucepan, melt butter over medium heat. Add flour and stir for 1-2 minutes until it turns light golden.
Slowly pour in milk while stirring. Simmer until the sauce thickens.
Remove from heat, add salt, grated sharp cheddar cheese, and cayenne pepper (if using). Stir until smooth.
Layer half of the sliced potatoes in the baking dish. Pour half of the cheese sauce over it.
Add the remaining potatoes for the second layer, then pour the rest of the cheese sauce.
Sprinkle grated cheese evenly over the top.
Cover with foil and bake for 45 minutes.
