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Cheesy Mississippi Mud Potatoes Recipe

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4.6 from 341 reviews

Cheesy Mississippi Mud Potatoes is a rich, creamy, and flavorful baked potato casserole featuring tender russet potatoes blended with butter, sour cream, and heavy cream, layered with sharp cheddar and mozzarella cheeses, seasoned with garlic, onion powder, and paprika, then baked to golden perfection and topped with crispy fried onions for a delicious crunch.

Ingredients

Potatoes

  • 3 pounds russet potatoes, peeled and cubed

Dairy & Fats

  • 1/2 cup unsalted butter
  • 1 cup sour cream
  • 1 cup heavy cream
  • 2 cups shredded sharp cheddar cheese (or more, to taste)
  • 1 cup shredded mozzarella cheese
  • 1 tablespoon olive oil or butter (for greasing the baking dish)

Vegetables & Aromatics

  • 1/4 cup chopped green onions

Seasonings

  • 2 teaspoons garlic powder
  • 1 teaspoon onion powder
  • 1 teaspoon paprika
  • 1/2 teaspoon ground black pepper
  • Salt, to taste

Toppings

  • 1/2 cup crispy fried onions (optional)

Instructions

  1. Prepare the Potatoes: Peel and cube 3 pounds of russet potatoes into even pieces to ensure uniform cooking. Rinse to remove excess starch.
  2. Boil the Potatoes: Place the cubed potatoes into a large pot and cover with cold water. Add a pinch of salt, bring to a boil over medium-high heat, and cook until the potatoes are very tender, about 15-20 minutes. Drain well.
  3. Mash the Potatoes: Return the drained potatoes to the pot or a large mixing bowl. Add 1/2 cup unsalted butter, 1 cup sour cream, and 1 cup heavy cream. Mash using a potato masher or mixer until smooth and creamy.
  4. Season the Mixture: Add 2 teaspoons garlic powder, 1 teaspoon onion powder, 1 teaspoon paprika, 1/2 teaspoon ground black pepper, and salt to taste. Mix well to evenly distribute the seasonings.
  5. Add Cheeses and Onions: Fold in 2 cups shredded sharp cheddar cheese, 1 cup shredded mozzarella cheese, and 1/4 cup chopped green onions into the mashed potatoes until fully combined.
  6. Prepare the Baking Dish: Preheat your oven to 350°F (175°C). Grease a baking dish with 1 tablespoon of olive oil or butter to prevent sticking.
  7. Assemble the Dish: Transfer the cheesy potato mixture into the prepared baking dish, spreading it evenly.
  8. Bake the Potatoes: Bake in the preheated oven for 25-30 minutes, or until the top is golden and bubbly around the edges.
  9. Add Topping: If desired, sprinkle 1/2 cup crispy fried onions evenly over the top in the last 5 minutes of baking for a crunchy finish.
  10. Serve: Remove from the oven and let cool slightly before serving. Garnish with additional chopped green onions if desired and enjoy the comforting cheesy potatoes warm.

Notes

  • Russet potatoes work best for their high starch content, giving fluffy and creamy texture.
  • Adjust cheese amounts according to your taste preference for a milder or stronger cheesy flavor.
  • For a lighter version, substitute heavy cream with milk, but expect a slightly less rich texture.
  • Adding crispy fried onions on top is optional but adds a delightful crunch contrast.
  • This dish pairs well as a hearty side for grilled meats or a comforting vegetarian main when served with a salad.