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Easy Make-Ahead Cheesy Scalloped Potatoes

easy make-ahead cheesy scalloped potatoes - featured image

A comforting, cheesy scalloped potatoes recipe perfect for busy parents. Prep ahead and bake for a warm, satisfying family meal with minimal stress.

Ingredients

Scale
  • 3 pounds Yukon Gold or Russet potatoes, thinly sliced
  • 4 tablespoons unsalted butter, softened
  • 1/4 cup all-purpose flour
  • 2 1/2 cups whole milk
  • 2 cloves garlic, minced
  • 1 small onion, finely chopped
  • 2 cups shredded sharp cheddar cheese, plus extra for topping
  • Salt and pepper to taste
  • Fresh thyme or parsley, chopped (optional)

Instructions

  1. Rinse and peel potatoes. Slice thinly (about 1/8 inch) using a mandoline or sharp knife. Soak in cold water to prevent browning. (15 minutes)
  2. In a medium saucepan over medium heat, melt butter. Sauté onion for 3–4 minutes until translucent. Add garlic and cook 30 seconds.
  3. Sprinkle flour into the pan and whisk constantly for 2 minutes to form a roux.
  4. Gradually whisk in milk, cooking and stirring until sauce thickens and coats the back of a spoon, about 5–7 minutes.
  5. Remove from heat and stir in shredded cheddar cheese until melted. Season with salt and pepper. Add more milk if sauce is too thick.
  6. Drain potato slices and pat dry. Lightly butter a 9×13-inch baking dish.
  7. Layer potatoes in the dish, pouring cheese sauce over each layer. Finish with a generous cheese layer on top.
  8. If making ahead, cover tightly and refrigerate up to 24 hours. Bring to room temperature for 20 minutes before baking.
  9. Preheat oven to 350°F (175°C). Cover dish with foil and bake for 45 minutes.
  10. Remove foil and bake uncovered for 20–25 minutes until top is golden and bubbly and potatoes are tender.
  11. Let rest for 10 minutes before serving. Sprinkle fresh thyme or parsley on top if desired.

Notes

Use a mandoline for even potato slices. Cover with foil during most of baking to keep moisture, then remove foil to brown the top. Let rest before serving for best texture. Can be assembled up to 24 hours ahead and refrigerated. For gluten-free, substitute flour with cornstarch or gluten-free flour blend. Sharp cheddar recommended for flavor; mix cheeses for variation.

Nutrition

Keywords: scalloped potatoes, cheesy potatoes, make-ahead dinner, easy family meal, comfort food, busy parents recipe