
Cheesy Scalloped Potatoes are one of those comforting oven-baked dishes that feel both simple and indulgent at the same time. Thin layers of potatoes are baked slowly in a rich, creamy cheese sauce until everything becomes tender, golden, and bubbling. It’s a classic side dish often served at holidays, family dinners, or whenever you want something warm and satisfying on the table.
Below is a detailed, step-by-step guide to making perfectly creamy and cheesy scalloped potatoes from scratch.
🥔 What Are Cheesy Scalloped Potatoes?
Cheesy scalloped potatoes are a baked potato dish made with thinly sliced potatoes layered in a creamy sauce—usually made from butter, milk, cream, and cheese. As it bakes, the sauce thickens and soaks into the potatoes, creating soft layers with a golden, cheesy top.
Unlike gratin (which often uses breadcrumbs), scalloped potatoes focus more on the creamy sauce and smooth texture.
🧀 Ingredients You’ll Need
Here’s a classic version that serves about 6–8 people:
- 4–5 large russet or Yukon Gold potatoes
- 3 tablespoons butter
- 3 tablespoons all-purpose flour
- 2 ½ cups milk (whole milk preferred)
- 1 cup heavy cream (optional but makes it richer)
- 2 cups shredded cheese (cheddar is most common)
- 2 cloves garlic, minced
- 1 small onion, finely chopped (optional)
- 1 teaspoon salt
- ½ teaspoon black pepper
- ½ teaspoon paprika (optional, for color and warmth)
🔪 Step-by-Step Method
Step 1: Prepare the Potatoes
Wash and peel the potatoes. Then slice them very thin—about ⅛ inch thick.
A mandoline slicer works best for even slices, but a sharp knife will also do.
Place sliced potatoes in cold water to prevent browning while you prepare the sauce.
Step 2: Make the Cheese Sauce Base
In a medium saucepan:
- Melt butter over medium heat.
- Add chopped onion and cook until soft (about 3–4 minutes).
- Stir in minced garlic and cook for 30 seconds.
- Add flour and whisk continuously for 1–2 minutes to form a smooth paste (this is your roux).
This step is important—it thickens the sauce so it becomes creamy instead of watery.









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