The Ultimate Cheesy Hashbrown Casserole (From Scratch)

 The Ultimate Cheesy Hashbrown Casserole (From Scratch)

If you're craving the kind of comfort food that wraps you up like a warm hug, Cheesy Hashbrown Casserole is it. This dish is rich, creamy, full of flavor, and delivers that irresistible golden crust that keeps everyone coming back for seconds. Whether you’re planning a cozy family dinner, a potluck hit, or the ultimate side dish for brunch, this casserole never disappoints.

Forget the canned soups—this from-scratch recipe creates that same creamy, satisfying texture with real ingredients, taking your casserole game to the next level. Packed with melty sharp cheddar, tender shredded hash browns, and a homemade garlic-infused cream sauce, it’s no wonder this recipe earns rave reviews every time.

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🛒 Ingredients & Their Roles

Main Ingredients:

30 oz frozen shredded hash brown potatoes (thawed): The hearty base of the casserole. Thawing ensures even baking and a perfectly creamy texture.

2 tbsp olive oil: Used to sauté the aromatics, adding depth and a touch of healthy fat.

1 yellow onion, diced: Provides sweetness and flavor complexity when sautéed.

3 large garlic cloves, minced: Adds aromatic, savory depth to the cream sauce.

1/4 cup all-purpose flour: Creates a roux that thickens the sauce to that luscious, creamy consistency.

2 cups whole milk: The base of the béchamel-style sauce—whole milk brings richness, though reduced fat can work too.

1 cup chicken stock: Adds savory undertones and keeps the sauce from being too heavy.

1 cup sour cream: Gives the casserole its signature tang and creamy mouthfeel.

8 oz shredded sharp cheddar cheese (plus 1 cup for topping): Melts into the sauce for bold, cheesy flavor and forms the golden crust on top.

1½ tbsp minced parsley (or 1 tbsp dried parsley): Adds freshness and a pop of color.

Salt & freshly cracked black pepper: Essential for seasoning and balance.

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🔥 Step-by-Step Instructions

1. Prep the Oven and Dish

Preheat your oven to 350°F (175°C).

Grease a 9×13-inch casserole dish with butter or non-stick spray.

2. Sauté the Aromatics

In a medium pot over medium heat, heat the olive oil.

Add the diced onion and cook until softened and golden brown, about 5-7 minutes.

Add the minced garlic and sauté for another 30 seconds, until fragrant.

3. Build the Cream Sauce

Sprinkle flour over the onion-garlic mixture and stir continuously for 1-2 minutes to create a roux.

Slowly whisk in the chicken stock, followed by the milk, ensuring a smooth mixture.

Let the sauce simmer for 3-5 minutes, stirring constantly, until it thickens slightly.

4. Add the Creamy Elements

Reduce heat to low.

Stir in the sour cream, 8 oz of shredded cheese, salt, and pepper.

Cook until the cheese is fully melted and the sauce is creamy and thickened.

Taste and adjust seasoning as needed.

Fold in the minced parsley.

5. Combine with Hash Browns

In a large mixing bowl, combine the thawed hash browns with the cheesy sauce. Stir until evenly coated.

6. Assemble and Bake

Spread the mixture evenly into the greased casserole dish.

Sprinkle the remaining 1 cup of shredded cheddar evenly on top.

Bake uncovered for 40–45 minutes, or until bubbly and golden on top.

7. Optional Broil

For an extra crispy, golden top, broil for an additional 2-3 minutes, watching carefully to avoid burning.

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❤️ Why You'll Love This Recipe

No condensed soups – just real, whole ingredients.

Creamy, cheesy, and deeply flavorful.

Makes a perfect make-ahead or freezer-friendly dish.

Ideal for holidays, brunch, dinner parties, or a simple Sunday meal.

Kid-friendly, potluck-approved, and endlessly customizable.

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✅ Pro Tips for Perfecting Your Hashbrown Casserole

Thaw the hash browns fully before mixing; excess moisture can make the casserole watery.

For extra flavor, add cooked bacon, diced ham, or sautéed mushrooms.

Use freshly shredded cheese instead of pre-shredded for better melting and flavor.

Want a kick? Mix in a pinch of cayenne or a few dashes of hot sauce.

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🥗 Serving Suggestions

Pair your Cheesy Hashbrown Casserole with:

Crispy bacon or sausage for breakfast.

A green salad or roasted vegetables for dinner.

Fried eggs and toast for the ultimate brunch plate.

A dollop of sour cream and chopped chives on top for extra flair.

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📌 Final Thoughts

This Cheesy Hashbrown Casserole delivers all the comforting, melty, crispy goodness you crave—without relying on shortcuts or processed soups. It’s hearty, flavorful, and endlessly satisfying, whether you're feeding a crowd or just meal prepping for the week.

With this step-by-step guide, you can easily master this classic dish and make it your own. Serve it once, and it’ll be a permanent fixture on your table. Simple ingredients, rich flavor, and crowd-pleasing results—wh

at more could you ask for?

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⭐ Ready to wow your guests? Save this recipe, share it, and prepare to hear everyone ask for seconds—and the recipe.