Oyster Pie with Buttermilk Biscuits | Saveur

Ingredients

• 3 cups (13 1/2 oz.) all-purpose flour, plus more for dusting
• 2 tsp. baking powder
• 1 ¹⁄₂ tsp. kosher salt
• ¹⁄₄ tsp. baking soda
• 3 sticks chilled unsalted butter, cut into 1/2-inch cubes
• 1 ¹⁄₄ cups buttermilk, chilled
• 2 tbsp. olive oil
• 10 oz. smoked country ham, finely diced
• 2 stalks celery, finely chopped
• 2 bulbs fennel, finely chopped
• 1 large yellow onion, finely chopped
• Kosher salt and freshly ground black pepper
• 4 cloves garlic, finely chopped
• 1 cup (4 1/2 oz.) all-purpose flour
• 4 cups whole milk
• 2 bunches Swiss chard, or spinach leaves, stems removed, roughly chopped
• 7 oz. shucked oysters (2 dozen)
• ¹⁄₂ cup finely chopped chives
• ¹⁄₄ cup absinthe or Pernod
• 1 tbsp. finely chopped flat-leaf parsley