Pre-heat your oven to 350 degrees.
Cleanse and scrub the potato's skin and dry them off with an absorbent towel. Pierce every potato several times using the fork.
Take a little amount of vegetable oil on your hands. Coat each potato with oil, then sprinkle them with Kosher salt.
Put the potatoes on the rack in the oven, and Bake at 350 degrees for about 60 minutes.
Cook your bacon in a big pot, flipping it frequently until it's slightly crispy. Save the bacon grease for the following step.
In the same pot, melt the butter along with the bacon grease on medium to low heat, be cautious not to burn it.
Add the onion, and cook until it becomes soft.
Mix in the flour and stir until it is cooked for approximately 3 to 4 minutes, using a rubber spatula to remove any bacon bits stuck in the bottom.
Gradually add chicken broth, salt, water, black pepper, basil, and sugar. Using a whisk, constantly whisk while bringing to a boil.
Add the cream gradually until it's reached appropriate consistency.
Cut the potatoes into small cubes and add them to the soup. Simmer for 5 minutes or so until the potatoes reach temperatures, but don't get too hot.
Pour the soup into bowls. Decorate with bacon pieces as well as chives, and cheese mix.