Scalloped Potatoes and Ham

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  2 tbsp Unsalted Butter
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  1 Yellow Onion(110g)
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  6 Garlic(18g)
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  1 cup Whole Milk
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  0.8 cup Low Sodium Chicken Broth

  Any carton chicken broth labeled "low sodium." Swanson or store brand.

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  1.5 tsp 1 ½ teaspoons kosher salt (divided)
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  0.5 tsp ½ teaspoon ground black pepper
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  3 lbs Potato, Yukon Gold
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  3 tbsp Flour, All-Purpose, White
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  2 cup Ham Or Canadian Bacon
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  4 oz Cheddar Cheese
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  2 tbsp Parmesan Cheese

  Grated Parmesan — the shelf-stable canister is fine for cooking.

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  Chopped Fresh Chives (Thyme, Or Parsley, Optional For Serving)

Instructions

1. 1Preheat oven to 375°F. Melt the butter in a medium pot over medium-low heat. Add the onion and cook 8–10 minutes, stirring often, until translucent and softened but not browned. Stir in the garlic and cook about 1 minute more until fragrant.
2. 2Remove from heat. Stir in the milk, chicken broth, salt, and pepper until combined. Set aside.
3. 3Peel the potatoes and slice them into very thin 1/8-inch slices using a mandoline or sharp knife. Place the potato slices in a large bowl, sprinkle with the flour and salt, and toss with your hands until evenly coated.
4. 4Layer one-third of the potato slices in a 9×13 inch casserole dish. Spoon about 2/3 cup of the milk-broth mixture over the potatoes, then sprinkle with 2/3 cup of the ham and one-third of the shredded cheddar cheese. Repeat layering two more times, ending with the cheddar on top.
5. 5Cover the dish tightly with aluminum foil (spray-side down). Bake covered at 375°F for 35 minutes. Uncover and bake for 25 additional minutes until the potatoes are tender.
6. 6Remove from oven and sprinkle the Parmesan cheese over the top. Switch oven to broil and return the dish to the oven for 1–3 minutes, watching carefully, until the cheese is golden brown and bubbly.
7. 7Let the scalloped potatoes stand at room temperature for 20–25 minutes to allow the milk mixture to set and thicken.
8. 8Divide evenly into 12 airtight containers while still warm. Cool completely before refrigerating. Reheat portions in a 350°F oven for 10–12 minutes until heated through.