Braised Chicken with chard

1 tablespoon olive oil 6 bone-in chicken thighs 1 potato , peeled and chopped 1 yellow onion , finely chopped (1 cup) 2 carrots , chopped 2 garlic cloves ,[...]

1/2 lb white pearl onion, unpeeled 1 tablespoon butter , divided 2 teaspoons butter , divided 1 cup onion , slivered 1/2 cup carrot , thinly sliced 1/2 cup[...]