When it comes to gathering friends and family for a barbecue, game day, or potluck, Sour Cream and Onion Party Potatoes are a must-have side dish that never fails to impress. This creamy, flavorful potato casserole combines tender potatoes with a rich sour cream and onion sauce, topped with melted cheese and crispy breadcrumbs for the perfect textural contrast.

Ideal as a side dish for supper, a potluck recipe healthy enough to please the crowd, or a classic complement to ribs and grilled chicken, this dish delivers comfort and satisfaction in every bite. The luscious creaminess paired with tangy onion flavor and golden, bubbly cheese make it a recipe you’ll want to bring out time and again.

Let’s dive into how to create this savory, crowd-pleasing casserole from start to finish.

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What Are Sour Cream and Onion Party Potatoes? A Classic BBQ and Gameday Favorite

These potatoes are more than just a casserole—they’re a staple at backyard barbecues, football watching parties, and family dinners. The dish typically features sliced or cubed potatoes baked in a sauce made with sour cream, cream cheese, and dry onion soup mix or fresh onions, then topped with cheddar cheese and sometimes a crunchy breadcrumb topping.

The creamy sauce clings to the potatoes, melding tangy sour cream with the sharpness of onion and the richness of cheese. It’s hearty enough to stand alongside grilled meats but easy to make ahead, making it a game day favorite for feeding crowds.

Whether you call them side recipes for BBQ or gameday side dishes, sour cream and onion party potatoes fit perfectly on any menu.

Ingredients for Sour Cream and Onion Party Potatoes (With Exact Measurements)

This recipe serves about 8 people generously.

• 4 cups peeled and thinly sliced potatoes (Yukon gold or red potatoes work well)
• 1 cup sour cream
• 4 ounces cream cheese, softened
• 1 packet (1 oz) dry onion soup mix
• 1 cup shredded sharp cheddar cheese
• ½ cup crushed buttery crackers or breadcrumbs (optional for topping)
• 2 tablespoons unsalted butter, melted (for topping)
• 2 green onions, sliced (for garnish)
• Salt and freshly ground black pepper, to taste

This simple ingredient list creates a rich, creamy, and flavorful side perfect for any occasion.

Kitchen Tools You’ll Need for This Creamy Potato Casserole

You don’t need a fancy kitchen to make these potatoes:

• Large mixing bowl
• 9×13-inch baking dish
• Knife and cutting board
• Cheese grater
• Measuring cups and spoons
• Aluminum foil (optional for covering while baking)
• Spoon or spatula

Having these tools ready will streamline your cooking process.

Step-by-Step Instructions: How to Make Sour Cream and Onion Party Potatoes

1. Preheat your oven to 350°F (175°C) and lightly grease your baking dish.
2. In a large bowl, combine the sour cream, softened cream cheese, and dry onion soup mix until smooth.
3. Add the sliced potatoes to the sauce mixture and stir gently until all potatoes are coated evenly. Season with salt and pepper.
4. Transfer the coated potatoes into the prepared baking dish, spreading them out evenly.
5. Sprinkle shredded cheddar cheese over the top.
6. If using, mix the crushed crackers with melted butter and sprinkle over the cheese for a crunchy topping.
7. Cover the dish loosely with foil and bake for 45 minutes.
8. Remove the foil and bake for an additional 15 minutes, or until the cheese is bubbly and golden, and the potatoes are tender when pierced with a fork.
9. Garnish with sliced green onions before serving.

This method creates creamy, cheesy potatoes with a satisfyingly crispy top that’s perfect for gatherings.

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Tips for Creamy Texture, Perfect Seasoning, and Crispy Toppings

• Use thinly sliced potatoes to ensure even cooking and tender bites.
• Softened cream cheese blends better into the sauce for a smooth texture.
• Dry onion soup mix adds savory depth but you can substitute with fresh sautéed onions and garlic.
• The breadcrumb topping is optional but adds a welcome crunch.
• Covering the dish during the first part of baking locks in moisture and softens the potatoes.

These tips guarantee a party potato dish that’s creamy, flavorful, and a textural delight.

Variations: Healthier Versions, Cheese Additions, and Make-Ahead Tips

• For a healthier version, swap sour cream for Greek yogurt and use reduced-fat cheese.
• Add cooked bacon or pancetta for a smoky, savory twist.
• Mix in sautéed mushrooms or bell peppers for extra veggies.
• Use smoked cheddar or gouda for a richer cheese flavor.
• Assemble the casserole a day ahead, cover tightly, and refrigerate. Add extra baking time if baking straight from the fridge.

These variations keep the dish fresh and adaptable for different tastes and occasions.

Why This Side Dish Works Perfectly for BBQs, Potlucks, and Game Day

This casserole holds up well in large batches, is easy to transport, and can be served warm or at room temperature. The creamy potatoes offer comfort that balances smoky BBQ meats and finger foods, making it a favorite at cookouts and parties.

Its crowd-pleasing flavors, simple prep, and versatility make it a staple side dish with ribs or chicken and a reliable choice for feeding hungry guests.

Serving Ideas: Pairings with Ribs, Chicken, and Other Main Dishes

Pair your sour cream and onion party potatoes with:

• BBQ ribs or pulled pork
• Grilled or roasted chicken
• Beef brisket or steak
• Fried or baked fish
• Vegetable sides like coleslaw or green beans

This casserole complements rich mains with creamy, tangy, and cheesy notes.

Storage and Reheating Tips for Leftover Party Potatoes

Store leftovers covered in the refrigerator for up to 4 days.

To reheat, cover loosely with foil and bake at 350°F for 20 minutes or microwave individual portions until hot.

If reheating from frozen, thaw overnight in the fridge and bake covered for 30–40 minutes.

These potatoes reheat beautifully without losing their creamy texture.

Nutrition Information (Per Serving)

Approximate nutrition per 1 cup serving:

Calories: 280
Fat: 15g
Carbohydrates: 25g
Protein: 6g
Fiber: 3g
Sugar: 3g
Sodium: 600mg

Nutrition values vary slightly depending on ingredient brands and portion size.

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Sour Cream and Onion Party Potatoes FAQs

Can I use frozen potatoes?
Fresh potatoes are best for texture, but thawed frozen sliced potatoes can work if you adjust baking time.

Is this recipe gluten-free?
Use gluten-free breadcrumbs or skip the topping for a gluten-free dish.

Can I make this vegan?
Swap sour cream and cream cheese for dairy-free alternatives and use vegan cheese.

How far ahead can I prepare this dish?
You can assemble the casserole up to 24 hours in advance and refrigerate before baking.

Can I add other flavors?
Yes! Try garlic powder, smoked paprika, or fresh herbs for variety.

Final Thoughts and Invite to Share or Subscribe

Sour Cream and Onion Party Potatoes are a quintessential comfort side that elevates any gathering with creamy, cheesy, and savory flavors. Easy to make, crowd-pleasing, and endlessly adaptable, this dish is a perfect match for your favorite BBQ mains, game day snacks, or potluck celebrations.

If you enjoyed this recipe, please share it with your friends, save it to your favorite recipe board, and subscribe to the blog for more delicious, easy-to-make sides and party dishes.

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