Salt and Pepper Biscuits with Bacon Butter

Name: Salt and Pepper Biscuits with Bacon Butter
Ingredients: 2 1/2 cups all-purpose flour; 2 teaspoons baking powder; 1 1/2 teaspoons ground black pepper; 1 teaspoon kosher salt; 1 teaspoon sugar; 1/4 teaspoon baking soda; 8 tablespoons unsalted butter, cubed and chilled; 1 to 1 1/4 cups buttermilk, plus more for brushing; 2 teaspoons flaky salt, such as Maldon; Bacon Butter, recipe follows; 8 slices bacon; 1/2 cup (1 stick) unsalted butter, at room temperature; 1/8 teaspoon freshly ground pepper; Pinch kosher salt