The first clue that a baked potato is ready is the way a knife slips through its center without catching on a firm spot. Rush that part, and you’ll be chasing hard pieces in the pot instead of spoonfuls of soft potato. I bake the russets until tender, then fold their fluffy insides into a buttery broth base for this Baked Potato Soup.
Cooking the potatoes separately gives them time to become tender before they meet the milk, so the soup can thicken without the potatoes falling apart into the bottom of the pot. I keep the toppings for the bowls rather than stirring them into the Dutch oven: crisp bacon and sharp cheddar bring savory richness, while sour cream and green onions give each spoonful a cool, fresh finish.
Kitchen Note
I keep the sour cream out of the Dutch oven and add it to each bowl instead. It stays cool and tangy against the hot soup, and the base keeps its smooth, milky texture.
Save this Baked Potato Soup for a cozy dinner with fluffy russets, sharp cheddar, and crisp bacon on every bowl.
Why Baked Potatoes Make a Better Soup Base Than Raw Cubes
Raw potato cubes need to cook in the soup liquid, and the timing can be awkward: the broth and milk are ready to simmer before the potatoes have softened all the way through. Baking the russets first solves that problem. The oven gives the centers time to turn tender, and their fluffy flesh slips into the soup without needing a long boil in the dairy.
That matters for the texture, not just the timing. Russets have plenty of starch, so once their flesh is stirred into the broth, they help give the soup a satisfying body. Mashing about half against the side of the pot thickens it while leaving soft potato pieces throughout. Mash all of it and you lose those tender bites; leave it all whole and the broth stays thinner. A few purposeful presses are enough to get the balance right.
What the Russets, Roux, and Toppings Each Bring
- Russet potatoes — Their starchy centers turn fluffy after baking and help thicken the soup when mashed. Standard grocery-store russets work well; choose firm potatoes without soft or shriveled spots.
- Butter and all-purpose flour — Together they make the roux that gives the broth body before the potatoes go in. Regular pantry butter and flour are fine here; the gradual whisking matters more than a premium brand.
- Low-sodium chicken broth — It brings savory depth while leaving room for the salt from the bacon and cheddar. Whole milk adds a rounded, creamy texture; 2% milk works as a swap but makes the soup a little less rich.
- Sharp cheddar — Its stronger flavor stands up to the potato and milk instead of disappearing into them. A standard grocery-store sharp cheddar is plenty flavorful for these bowls.
- Bacon, sour cream, and green onions — These toppings bring the salty crunch, cool tang, and fresh bite that make each serving taste like a loaded baked potato. Slice the green onions thinly so they scatter easily over the soup.
Bake, Thicken, Then Fold in the Potato
Bake Until the Centers Give Easily
Heat the oven to 400°F and set the scrubbed, dried potatoes on a rimmed baking sheet. Prick each one several times with a fork, then bake for 50–65 minutes, until a knife slides easily into the center. If the knife catches on a firm spot, the potato needs more oven time. Let the potatoes cool for 10 minutes, or until they’re easy to handle.
Cook the Bacon in Two Batches
While the potatoes cool, cook the bacon in a 6-quart Dutch oven over medium heat, working in two batches for 6–8 minutes per batch. The slices should be crisp before you transfer them to a paper towel-lined plate. Drain the drippings from the pot, then crumble the bacon once it’s cool. Give each batch enough room to cook rather than crowding all the slices together.
Whisk a Smooth, Gently Thickened Base
Melt the butter in the Dutch oven over medium heat, add the finely chopped onion, and cook for about 5 minutes, stirring occasionally, until softened. Stir in the flour and cook for 1 minute so it blends into the butter. Gradually whisk in the chicken broth until smooth; adding it gradually helps keep lumps from forming. Whisk in the milk, bring the mixture to a gentle simmer, and cook for 8–10 minutes, stirring often, until slightly thickened.
Mash Just Enough Potato Into the Soup
Scoop the potato flesh from the skins into the pot and discard the skins. Add the kosher salt and black pepper, then mash about half of the potato against the side of the pot; keep the rest in soft pieces. Simmer for 5 minutes, stirring gently, so the potato warms through without breaking down completely. Ladle the soup into bowls and top with the bacon, cheddar, sour cream, and green onions.
Three Changes That Give This Soup a Different Spin
Make It Vegetarian
Use vegetable broth in place of the chicken broth and leave out the bacon. The soup keeps its creamy potato base, but you’ll miss the smoky crunch and saltiness the bacon brings to the bowls.
Add a Pepper Jack Finish
Swap the sharp cheddar topping for pepper jack. It adds a gentle chile heat and a milder cheese flavor, while keeping the same melty finish over each hot bowl.
Use Greek Yogurt for a Tangier Top
Replace the sour cream with an equal amount of plain whole-milk Greek yogurt. It gives each bowl a tangier finish and a slightly thicker spoonful on top.
Storage and Reheating
- Refrigerator: Store the cooled soup in an airtight container for 3–4 days. It’ll thicken as the potatoes sit in the broth; keep toppings separate for the best texture.
- Freezer: Freezing isn’t recommended. The potatoes can turn mealy and the milk may separate when the soup thaws.
- Reheating: Warm it gently on the stovetop, stirring often, until it reaches 165°F. If it’s too thick, stir in a little milk or broth; avoid boiling, which can scorch the dairy base.
Questions That Come Up With Baked Potato Soup
Baked Potato Soup
Ingredients
Equipment
Method
- Heat the oven to 400°F and set the potatoes on a rimmed baking sheet.
- Prick each potato several times with a fork and bake for 50–65 minutes, until a knife slides easily into the center.
- Let the potatoes cool for 10 minutes, or until easy to handle.
- Cook the bacon in a 6-quart Dutch oven over medium heat in two batches, 6–8 minutes per batch, until crisp.
- Transfer the bacon to a paper towel-lined plate, drain the drippings, and crumble the bacon once cool.
- Melt the butter in the Dutch oven over medium heat, add the onion, and cook for about 5 minutes, stirring occasionally, until softened.
- Stir in the flour and cook for 1 minute.
- Gradually whisk in the chicken broth until smooth, then whisk in the milk.
- Bring the soup to a gentle simmer and cook for 8–10 minutes, stirring often, until slightly thickened.
- Scoop the potato flesh from the skins into the pot and discard the skins.
- Add the salt and pepper, mash about half of the potatoes against the side of the pot, and simmer for 5 minutes, stirring gently.
- Ladle the soup into bowls and top with the bacon, cheddar, sour cream, and green onions.
