Cheesy Scalloped Potatoes

Ingredients
6 medium potatoes, peeled and thinly sliced
2 teaspoons salt
2 tablespoons butter
2 tablespoons all-purpose flour
1 ½ cups milk
¾ cup shredded Swiss cheese

Directions
Preheat the oven to 375 degrees F (190 degrees C). Grease a casserole dish.

Arrange sliced potatoes in the casserole dish; season with salt.

Melt butter in a saucepan over medium heat. Stir in flour until a paste forms. Pour in milk gradually, stirring constantly, until a thick white sauce forms, about 5 minutes. Stir in cheese and remove from heat. Pour sauce over the potatoes.

Bake in the preheated oven until potatoes are cooked through and tops are lightly browned, about 1 hour.

borrowed from: https://www.allrecipes.com/recipe/279404/cheesy-scalloped-potatoes/