No matter which dumpling style you prefer–soft drop-biscuit dumplings that float or small strips of pastry dropped into the bubbling pot and cut like noodles–this dish delivers the essential comfort and flavor you expect from chicken and dumplings.
1 (2 1/2- to 3-lb.) whole chicken
2 celery stalks, roughly chopped (about 1 cup)
2 medium carrots, roughly chopped (about 1 cup)
2 qts. water
2 1/2 tsp. kosher salt, divided
1/2 tsp. black pepper
2 cups all-purpose flour, plus more for work surface
1/2 tsp. baking soda
3 Tbsp. vegetable shortening
3/4 cup whole buttermilk
Chopped fresh chives