Cheesy Scalloped Potatoes

Prep Time: 20 minutes
Cook Time: 1 hour 30 minutes
Total Time: 1 hour 50 minutes
Calories: 310

 

Ingredients

  • 1 1/4 lbs red potatoes, washed, but not peeled
  • 1 1/4 lbs Yukon gold potatoes, washed, but not peeled
  • 1 onion, sliced thinly
  • 3 Tbsp butter
  • 3 Tbsp all purpose flour
  • 2 cloves garlic, minced
  • 1 tsp dry mustard
  • 1/4 tsp dried thyme
  • 1/4 tsp paprika
  • salt and pepper, to taste
  • 2 cups whole milk
  • 1 cup cheddar cheese shredded
  • 1/2 cup gruyere cheese shredded
  • 1/4 cup Parmesan cheese grated
  • ▢fresh chives, for garnish
  • ▢fresh parsley, for garnish
  • ▢additional 1/4 cup cheddar cheese, shredded
  • ▢additional 1/4 cup gruyere cheese, shredded
  • ▢additional 2 Tbsp Parmesan cheese, grated
  • Preheat oven to 400 degrees F.  Butter a 2 quart casserole dish and set aside.  
  • Slice potatoes in 1/8″ thin slices, and set aside.  
  • Add butter to medium saucepan, and heat over MED heat.  When butter is melted, add garlic and saute for 1 minute, until fragrant.  Add flour, whisk, and cook 1 minute.  Slowly add milk, whisking continuously, until no lumps remain.  Whisk over MED heat until mixture is thick and coats the back of a spoon.
  • Turn off heat, add cheeses, dry mustard, thyme, paprika, salt and pepper, and stir until smooth.
  • Layer half the potatoes and onion slices in prepared casserole dish, pour approximately half of the cheese sauce over potatoes and let sit for a minute.  Repeat with remaining potatoes, onions, and cheese sauce.
  • Sprinkle top of potatoes with gruyere, cheddar and Parmesan.  Spray aluminum foil with cooking spray, then cover the casserole dish (sprayed side down).  Place casserole on a baking sheet and bake for 60 minutes.
  • Remove foil and bake uncovered an additional 25-30 minutes.  Potatoes should be tender and cheese melted.  Broil on HIGH for a minute or two for extra browning and crispiness.
  • Sprinkle top with chives and parsley and serve.

 

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