Potato soup is one of my favorites.
I cook chopped bacon and then reserve it, saute onions, garlic, peppers, and carrots. Add flour to make a roux. Cook out the roux and then add a little stock, a little buttermilk, and a good bit of whole milk while stirring. Add a healthy amount of salt and black pepper, a little smoked paprika, cayenne, cumin, and coriander. Add potatoes, bring to a boil, reduce to simmer. Once the potatoes are cooked, check for seasoning one last time and serve. Top with reserved bacon and cheese.