Risotto bolognese

Name: Risotto bolognese
Prep time: 10 min
Cook time: 45 min
Total time: 55 min
Cuisine: European, Italian, Mediterranean
Ingredients: 100 g Parmesan cheese, cut into pieces (3 cm); 200 g beef mince; 2 tbsp olive oil; 1 carrot, cut into pieces (approx. 100 g); 1 celery stalk, cut into pieces (approx. 50 g); 1 shallot, cut into halves (approx 30 g); 250 g risotto rice (e.g. Arborio or Carnaroli); 650 g water; 1 vegetable stock cube (for 0.5 l); 300 g tomato passata; 1 bay leaf, dried; 1 tsp fine salt; ½ tsp freshly ground black pepper; 15 g butter