For the Cookies

5 1/2 to 6 cups unbleached all-purpose flour, plus more for rolling

1 teaspoon baking soda

1 teaspoon baking powder

1 teaspoon kosher salt

1 cup (16 Tablespoons) unsalted butter, softened

2 cups granulated sugar

3 extra large eggs at room temperature

1 Tablespoon pure vanilla extract

1 1/2 cups sour cream

For the Frosting

1 cup (16 Tablespoons) unsalted butter, softened

1/8 teaspoon kosher salt

1 Tablespoon pure vanilla extract

5 cups confectioners' sugar

4-6 Tablespoons milk

Food coloring

Sprinkles