1-First Step: Cook the potatoes Pierce the 4 scrubbed potatoes with a fork and microwave them for 12 to 15 minutes, or until tender. This is the quickest way to get a baked potato base without turning on the oven. If you have extra time, you can bake them at 350°F for about 45 minutes, but the microwave method is a great shortcut for busy nights. Once the potatoes are soft, let them cool enough to handle. Cut them in half, remove the skins, and chop the flesh into chunks. You can leave a little skin on if you like more texture in your loaded baked potato soup recipe.

2-Second Step: Cook the bacon While the potatoes cool, cook the 8 bacon slices in a skillet over medium heat until crisp. Transfer the bacon to a paper towel lined plate, then crumble it into small pieces. Keep up to 1 tablespoon of the bacon fat in the pan or set it aside, since it adds deep flavor later. That little bit of reserved bacon fat is one of the easiest ways to make baked potato soup taste richer and more savory.

3-Third Step: Start the flavor base Set a large pot over medium-low heat and melt the 4 tablespoons of unsalted butter. Add the reserved bacon fat, minced garlic, and yellow onion. Cook for 2 to 3 minutes, stirring often, until the onion softens and the garlic smells fragrant. This step builds the flavor layer that makes the soup taste homemade. If you are cooking for someone who likes a milder taste, keep the heat low so the garlic does not brown too quickly.

4-Fourth Step: Make the roux Whisk in the 1/3 cup flour and stir for 1 to 2 minutes. The mixture should look thick and slightly pasty. This is the base that will help turn the broth into a creamy soup later. Take your time here so the flour cooks out. A well cooked roux helps your loaded potato soup stay smooth and avoids a raw flour taste.

5-Fifth Step: Add the milk and stock slowly Slowly whisk in the 2 cups low-fat milk and 1 cup half and half until the mixture looks smooth. Add the 2 cups chicken stock and keep whisking as the soup warms up. The goal is a silky texture with no lumps. Bring the pot to a light simmer. Do not rush this part with high heat, since slow heating helps the dairy stay smooth. If you want a lighter bowl, you can use a little more milk and slightly less half and half.

6-Sixth Step: Season and thicken Whisk in the 1 teaspoon salt, 1/2 teaspoon garlic salt, and 1/2 teaspoon pepper. Let the soup simmer for 5 to 7 minutes, stirring often, until it thickens. Taste and add more salt if needed. This is the point where the soup starts to feel like a real baked potato soup and not just a creamy broth. If you like a stronger savory taste, add a little extra garlic salt or pepper.

7-Seventh Step: Stir in the rich toppings Add the 1 cup mild cheddar cheese, 1 cup sharp cheddar cheese, crumbled bacon, and 1 cup sour cream. Stir gently until the cheeses melt and the sour cream blends in. The soup should look creamy and full of flavor. Keep the heat low when adding the cheese and sour cream. Too much heat can make dairy separate, so a gentle simmer is best. If you want more cheese flavor, add a little extra sharp cheddar on top after serving.

8-Eighth Step: Add the potatoes Fold in the potato chunks and let them warm through for a few minutes. Some pieces may soften into the broth, which helps make the soup thick and hearty. If you prefer a smoother texture, mash a few potato chunks with the back of a spoon. For a chunkier bowl, stir very gently so the potatoes stay in larger pieces. Either way, the soup should feel thick, creamy, and satisfying.

9-Final Step: Serve hot Ladle the soup into bowls and top with fresh chives. You can add extra bacon, more cheddar, or a spoonful of sour cream if you want that classic loaded potato look. Serve it hot with bread, a side salad, or a simple sandwich. The finished soup is rich, cozy, and ready in just 35 minutes, which makes it a great choice for weeknight dinners, meal prep, and cold weather comfort food.