Cut the bacon into ½-inch pieces. Add enough bacon to cover the bottom of a large pot or Dutch oven. Cook the bacon until it's crispy, and then remove it to a paper towel-lined plate to drain. Repeat until all the bacon is cooked.
Drain all but 2 tablespoons of the bacon grease from the pot. (Keep that extra grease for frying up yummy things later.)
Add the onion, celery, and carrots to the pot. Cook the vegetables until tender, about 5 minutes.
Add potatoes, chicken broth, chicken base, dried parsley, garlic powder, salt, and pepper to the pot. Stir to combine.
Bring to a boil. Reduce the heat to medium-low, cover the pot leaving room for the steam to escape, and simmer for 45 minutes or until potatoes are fork-tender. Turn off the heat.
Mash some of the potatoes with a potato masher. (This will help thicken the soup.) Add the cheese and stir until melted into the soup. Add ⅔ of the cooked bacon and stir to combine. Add the half-n-half and stir until mixed.
Ladle the soup into bowls. Garnish with the remaining bacon, some cheese, sour cream, and chives before serving warm.
Notes
We use chicken base in this recipe for the extra flavor it imparts. Our favorite is the chicken-flavored “Better than Boullion.” If you are sensitive to salt, use low-sodium chicken broth and omit the additional salt listed in the ingredients.
Store the soup in an airtight container in the fridge for up to 5 days. The soup will thicken once cooled and can be thinned by adding a little chicken broth when reheating the soup. Reheat the soup on the stovetop until warmed through or microwave for 1 minute at a time, stirring in between, until hot.