Preheat oven to 350 degrees.
Wash and rinse red potatoes. Using a fork, poke each potato 4 times, I do twice on each side. Then place them in the oven on a baking sheet at 350 degrees and bake until completely cooked through, approximately 45 minutes, this depends on your potato size.
Meanwhile, heat a heavy bottom large pot over medium-high heat, add the 6 slices of bacon and cook on each side until crispy and brown. Remove bacon from pot and place on a paper towel, set aside for later.
Add the 4 tablespoon of butter, chopped onion, and minced garlic to pot. Cook until onions are translucent, about 4-5 minutes, reduce heat to medium. Stir in flour until it makes a paste with the butter.
Add in chicken broth and milk, stir until smooth. Bring to a boil, add in sour cream and cheese, salt and pepper to taste, cook over low-medium heat for 10 minutes.
While soup is cooking, cut the baked potatoes in half. Remove skins from baked potatoes, by squeezing the potato out of the skin, then loosely chop the potatoes. Throw skins away, add chopped potatoes to soup, cook for another 3-5 minutes, then serve.
Serve with bacon slices, crumbled and some shredded cheese. Chopped green onions are also a great topping.