Cook the Book: Goody Girl Championship Potatoes

Name: Cook the Book: Goody Girl Championship Potatoes
Ingredients: One 3- ounce package dry crab boil (Guy recommendeds Zatarain’s); 2 tablespoons kosher salt, plus more as needed; 3 pounds red-skin potatoes; 1 pound thick-cut bacon, diced; 1 cup diced red onion; 1 tablespoon minced garlic; 1/4 pound (1 stick) butter, at room temperature; 1 cup finely grated cheddar cheese (about 4 ounces); 1 green onion, chopped; 1/2 teaspoon cayenne pepper; 1/2 teaspoon paprika; 3/4 cup sour cream; Freshly ground black pepper