3 cups all-purpose flour

1 Tablespoons sugar

2 1/2 teaspoons baking powder

1/2 teaspoon baking soda

1/2 teaspoon salt

1/4 teaspoon cracked black pepper

3/4 cup unsalted butter, cold and cut into cubes

1 egg, beaten

3 tablespoons cold water

3/4 cup sour cream, cold

1/3 cup chopped chives

3/4 cup big crumbles of feta cheese

1 egg beaten for egg wash

coarse sea salt, cracked black pepper, and smoky paprika for topping