This is the ultimate loaded twice-baked potato casserole, a dish that lives up to its playful name by piling on layers of fluffy potato, sharp cheddar, crispy bacon, and a golden, puffed-up topping. It works because each component is built to add texture and flavor, from the creamy, well-seasoned potato base to the crunchy, cheesy crust that forms as it bakes. It’s a hearty, comforting side or main that feeds a crowd and tastes like a baked potato bar in every single bite.
Ingredients
- 6 large russet potatoes (about 3 lb / 1.4 kg), scrubbed
- 1 tbsp olive oil (15 ml)
- 8 slices bacon (about 8 oz / 225 g), chopped
- 1 cup (240 ml) sour cream
- 1/2 cup (120 ml) whole milk
- 4 tbsp (56 g) unsalted butter, melted
- 1 1/2 cups (170 g) shredded sharp cheddar cheese, divided
- 1/2 cup (50 g) grated Parmesan cheese
- 4 green onions, thinly sliced, plus more for garnish
- 1 tsp garlic powder
- 1/2 tsp smoked paprika
- 1/2 tsp salt, plus more for the potato skins
- 1/4 tsp black pepper
- 1/2 cup (40 g) panko breadcrumbs
Instructions
- Preheat your oven to 400°F (200°C). Pierce the potatoes a few times with a fork, rub them with the olive oil, and sprinkle lightly with salt. Place them directly on the oven rack and bake for 50–60 minutes, until they are tender when pierced with a knife. Let them cool for 10–15 minutes, until just cool enough to handle.
- While the potatoes bake, cook the chopped bacon in a skillet over medium heat until crisp, about 8 minutes. Remove with a slotted spoon and drain on paper towels. Reserve 1 tablespoon of the bacon fat.
- Once the potatoes are cool enough to handle, cut each one in half lengthwise. Scoop the flesh into a large bowl, leaving a thin shell of potato inside the skins. Place the skins on a baking sheet. (If you prefer a smoother casserole, you can skip the skins entirely and just scoop the flesh into a baking dish—see Tips.)
- Add the sour cream, milk, melted butter, 1 cup of the cheddar cheese, Parmesan, green onions, garlic powder, smoked paprika, salt, and pepper to the potato flesh. Mash with a potato masher or beat with a hand mixer until smooth and fluffy. Stir in the cooked bacon, reserving a little for the top.
- Spoon the mixture back into the potato skins, mounding it slightly. If using a baking dish instead of skins, transfer the mixture to a buttered 9×13-inch (23×33 cm) dish.
- In a small bowl, combine the panko breadcrumbs with the reserved bacon fat, then stir in the remaining 1/2 cup of cheddar cheese. Sprinkle this mixture evenly over the top of the potatoes.
- Bake at 400°F (200°C) for 15–20 minutes, until the topping is golden and the filling is hot and bubbly. If you want an extra-puffed top, switch to broil for the last 2–3 minutes, watching closely to avoid burning.
- Let rest for 5 minutes before serving. Garnish with extra green onions and the reserved bacon bits.
Tips
- Substitutions: Use Greek yogurt instead of sour cream for a tangier, higher-protein filling. Turkey bacon or a vegetarian bacon substitute works, but cook it a bit longer to get crisp. For a vegetarian version, omit the bacon and use 1 tablespoon of olive oil or butter in the topping instead of bacon fat.
- Make it ahead: You can assemble the stuffed potatoes (or the casserole) a day in advance. Cover and refrigerate, then add 10–15 minutes to the final bake time, or until heated through.
- Common mistake: Overmixing the potatoes makes them gummy. Mash just until the ingredients are combined and the texture is smooth but still slightly fluffy.
- Storage: Leftovers keep in the refrigerator for up to 4 days in an airtight container. Reheat individual portions in the microwave or oven.
Serving Suggestions
Serve these puffed potatoes as a hearty side alongside grilled steak, roasted chicken, or a simple green salad. They also work as a vegetarian main when paired with a big bowl of soup or a steamed vegetable. For a fun appetizer, make smaller versions using baby potatoes and serve them as finger food.
Variations
- Loaded Baked Potato Soup: Skip the skins and baking step. After mashing, stir in 2 cups (480 ml) of chicken or vegetable broth and 1 cup (240 ml) of heavy cream. Heat through and top with cheese, bacon, and chives.
- Southwest Style: Add 1/2 cup (75 g) of corn kernels, 1/4 cup (40 g) of diced green chiles, and 1/4 cup (30 g) of chopped cilantro. Swap the cheddar for pepper jack cheese.
- Broccoli Cheddar: Steam 2 cups (150 g) of small broccoli florets and fold them into the potato mixture along with the cheese.
- Herb and Garlic: Add 2 tablespoons of chopped fresh chives and 1 tablespoon of chopped fresh parsley to the filling, and use 1 tablespoon of minced roasted garlic instead of garlic powder.
Storage and Reheating
Refrigerate any leftovers within 2 hours of baking. They will keep for up to 4 days. To reheat, place the potatoes on a baking sheet and warm in a 350°F (175°C) oven for 10–15 minutes, or until hot and the topping is crisp again. You can also microwave individual portions for 1–2 minutes, but the topping will lose some crunch. Freezing is not recommended, as the texture of the potatoes can become watery and grainy.
Frequently Asked Questions
Can I use sweet potatoes instead of russets? Yes, sweet potatoes work well. They are moister, so you may need to reduce the milk to 1/4 cup (60 ml) to avoid a runny filling. The flavor pairs nicely with the bacon and cheddar.
Why is my topping not getting golden? If the topping is still pale after the suggested time, your oven may run cool. Increase the heat to 425°F (220°C) for the last 5 minutes, or finish under the broiler for 1–2 minutes, watching carefully.
Can I make this without the potato skins? Absolutely. Simply scoop the flesh into a buttered 9×13-inch (23×33 cm) baking dish, top with the crumb mixture, and bake as directed. You may need to add 5 minutes to the baking time since the casserole is thicker.
How do I know the potatoes are fully cooked before scooping? A knife should slide through the center with no resistance. If the potatoes are still hard in the middle, bake them for another 10 minutes before proceeding.
Can I prepare the filling ahead of time and bake later? Yes, you can make the filling and stuff the potatoes up to 24 hours in advance. Keep them covered in the refrigerator, then bake as directed, adding 10–15 minutes to the final bake time.
What if I don’t have panko breadcrumbs? Use regular breadcrumbs, crushed crackers, or even crushed potato chips for a different texture. If using crackers or chips, reduce the salt in the topping.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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