In a large Dutch oven, bring potatoes, 2 tablespoons salt, and water to cover to a boil over medium-high heat. Reduce heat, and simmer until tender, about 25 minutes. Drain well, and return potatoes to pot. Cook, stirring frequently, over low heat for 5 minutes.
In the bowl of a stand mixer fitted with the whisk attachment, beat potatoes, butter, pepper, and remaining 1 tablespoon salt at low speed until combined, about 1 minute. Gradually add buttermilk, beating until potatoes are smooth, about 1 minute, stopping to scrape bowl. Beat in parsley and dill until combined. Serve with additional butter and pepper, if desired.
Recipe by Paula Deen Magazine at https://pauladeenmagazine.com/herb-whipped-potatoes-recipe/