French Onion Potatoes

French Onion Potatoes are a rich and cheesy side dish that brings the savory essence of French onion soup to tender, creamy potatoes.

Layers of thinly sliced potatoes are coated in a luscious blend of sour cream, butter, and French onion soup mix, then baked to perfection and finished with a golden topping of melted cheddar cheese. Ideal for family meals, potlucks, or holiday feasts, this comforting dish is sure to be a crowd-pleaser.

French Onion Potatoes are a hearty and flavorful side dish that brings together the creamy richness of sour cream and the savory goodness of French onion soup mix.

Layered with tender potatoes and baked until golden, this dish is finished with a topping of melted cheddar cheese for an irresistibly cheesy bite. Perfect for family dinners or holiday gatherings, it’s a guaranteed crowd-pleaser that will have everyone coming back for more.

Ingredients

  • 6 medium-sized potatoes, peeled and thinly sliced for even cooking
  • 1 packet of French onion soup mix, for a deep, savory flavor
  • 1 ¾ cups sour cream, for creaminess and tang
  • 1 ¼ cups shredded sharp cheddar cheese, for a rich, melty topping
  • ¼ cup grated Parmesan cheese, for added depth and a crispy finish
  • 6 tablespoons unsalted butter, melted, for richness
  • ⅓ cup whole milk, to create a smooth, pourable sauce
  • ½ teaspoon garlic powder, for a subtle savory boost
  • ½ teaspoon paprika, for mild smokiness and color
  • Salt and black pepper, to taste
  • 1 teaspoon chopped fresh thyme or rosemary (optional), for an aromatic touch

Instructions

Step 1: Preheat & Prepare: Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish to prevent sticking.

Step 2: Make the Sauce: In a large bowl, whisk together sour cream, milk, melted butter, French onion soup mix, garlic powder, paprika, salt, and pepper until smooth.

Step 3: Layer the Potatoes: Arrange half of the sliced potatoes evenly in the baking dish. Pour half of the sour cream mixture over them. Repeat with the remaining potatoes and sauce.

Step 4: Bake Covered: Cover with aluminum foil and bake for 40 minutes, allowing the potatoes to soften and absorb the flavors.

Step 5: Add Cheese & Finish Baking: Remove the foil, sprinkle cheddar and Parmesan cheeses evenly on top, and bake uncovered for 15-20 minutes, or until the cheese is melted and bubbly, with a golden crust.

Step 6: Garnish & Serve: Let it rest for 5 minutes before serving. Sprinkle with fresh thyme or rosemary if desired. Enjoy warm!

Serving & Storage Tips

  • Serve as a comforting side dish alongside roasted meats or a festive meal.
  • Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven at 325°F (160°C) to maintain texture.

Helpful Notes

  • For a lighter version, use low-fat sour cream and reduced-fat cheese.
  • To enhance crispiness, broil for 2-3 minutes at the end.
  • Try swapping cheddar for Gruyère for a nutty flavor twist.
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French Onion Potatoes

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A rich and creamy take on potatoes, infused with the savory flavors of French onion soup and topped with melted cheese.

  • Total Time: 1 hours 15 minutes
  • Yield: 6 serving 1x

Ingredients

Scale
  • 6 medium-sized potatoes, peeled and thinly sliced for even cooking
  • 1 packet of French onion soup mix, for a deep, savory flavor
  • 1 ¾ cups sour cream, for creaminess and tang
  • 1 ¼ cups shredded sharp cheddar cheese, for a rich, melty topping
  • ¼ cup grated Parmesan cheese, for added depth and a crispy finish
  • 6 tablespoons unsalted butter, melted, for richness
  • ⅓ cup whole milk, to create a smooth, pourable sauce
  • ½ teaspoon garlic powder, for a subtle savory boost
  • ½ teaspoon paprika, for mild smokiness and color
  • Salt and black pepper, to taste
  • 1 teaspoon chopped fresh thyme or rosemary (optional), for an aromatic touch

Instructions

  1. Preheat & Prepare: Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish to prevent sticking.
  2. Make the Sauce: In a large bowl, whisk together sour cream, milk, melted butter, French onion soup mix, garlic powder, paprika, salt, and pepper until smooth.
  3. Layer the Potatoes: Arrange half of the sliced potatoes evenly in the baking dish. Pour half of the sour cream mixture over them. Repeat with the remaining potatoes and sauce.
  4. Bake Covered: Cover with aluminum foil and bake for 40 minutes, allowing the potatoes to soften and absorb the flavors.
  5. Add Cheese & Finish Baking: Remove the foil, sprinkle cheddar and Parmesan cheeses evenly on top, and bake uncovered for 15-20 minutes, or until the cheese is melted and bubbly, with a golden crust.
  6. Garnish & Serve: Let it rest for 5 minutes before serving. Sprinkle with fresh thyme or rosemary if desired. Enjoy warm!
  • Prep Time: 15 Minutes
  • Cook Time: 1 hours
  • Cuisine: American
  • Diet: Vegetarian

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