Cheesy Potatoes With Onions

This potato dish is really good!

• Ready In: 55 mins
• Serves: 6-8

Ingredients

• 3  lbs russet potatoes (peeled and thinly sliced, about 6 medium)
• 2  medium onions, thinly sliced
• 1 (6 ounce) package  sliced process American cheese
•  salt and pepper
• 1 1⁄4 cups cheddar cheese, shredded
• 1⁄4 cup butter
• 1⁄4 cup flour
• 1  pinch cayenne pepper (or to taste)
• 3  cups  warm full-fat milk

Directions

1. Set oven to 400 degrees.
2. Butter a 13 x 9-inch baking dish.
3. Cook the sliced potatoes in boiling water for about 5 minutes; drain.
4. Layer one-third of the partially-cooked potatoes in bottom of the baking dish, then one-third of onion slices, then one-third of the cheese slices.
5. Sprinkle with salt and pepper, then repeat layers two more times.
6. Sprinkle top with the shredded cheddar.
7. For the sauce; in a medium heavy saucepan melt butter over low heat.
8. Add in flour and cayenne then stir for 1 minute.
9. Slowly add in milk; whisk or stir until bubbly and thickened (about 3 minutes).
10. Pour the sauce over the cheese and potato mixture.
11. Bake for about 35 minutes or until golden.
12. Let stand for 10 minutes before serving.