Chicken hotpot

Ingredients

• 2 tablespoons vegetable or olive oil
• 8 chicken thigh fillets, trimmed, halved crosswise
• 2 celery sticks, thinly sliced, plus 2 tablespoons chopped pale celery leaves
• 1 carrot, halved lengthwise, thinly sliced diagonally
• 1 tablespoon chopped rosemary
• 1 tablespoon plain flour
• 1 400 gram can diced tomatoes with capsicum and onion
• 1 large chicken stock cube
• 350 grams chat (baby) potatoes, quartered
• 300 grams green cabbage, finely shredded