01 -
3 Russet potatoes.
02 -
4 tablespoons butter, divided.
03 -
4 tablespoons olive oil.
04 -
3 pounds bone-in chicken pieces.
05 -
2 teaspoons kosher salt.
06 -
½ teaspoon black pepper.
07 -
1 pound cremini mushrooms.
08 -
¼ cup shallots, diced.
09 -
1½ tablespoons garlic, minced.
10 -
½ cup cognac or brandy.
11 -
½ cup white wine.
12 -
3 tablespoons tomato paste.
13 -
2 Roma tomatoes, diced.
14 -
1½ cups chicken stock.
15 -
½ cup beef stock.
16 -
¼ cup sour cream.
17 -
2 tablespoons fresh tarragon.
18 -
2 tablespoons fresh parsley.