Curried Chicken with peppercorns

1 large onion , chopped 6 garlic cloves , minced 3 roma tomatoes , chopped (or equivalent) 1 green pepper , chopped 1 cup carrot , chopped 1 cup celery ,[...]

2 garlic cloves , minced 2 tablespoons vegetable oil 4 tablespoons curry powder 3 cups chicken broth two 14-ounce cans unsweetened coconut milk 1 cup water 2[...]

3 lbs chicken 6 peppercorns 1 bay leaf 1 stalk parsley 1 sprig fresh thyme 1 onion 1 carrot 1 stalk celery 1/2 green pepper , finely shred 1/2 red pepper,[...]