Watercress Risotto With Scampi And Scallops

Name: Watercress Risotto With Scampi And Scallops
Ingredients: Sea salt and pepper; 1 bunch watercress, blanched in salted water for 1 minute, then rinsed; 2 tbsp mascarpone cheese; 3.5-4 cup vegetable broth; 2 tbsp butter; 2 tbsp olive oil plus more to serve; 1 twig thyme; 1 x bay leaf; 1 cup Carnaroli rice; 1/4 cup dry white wine; 1 large shallot, chopped finely; 1 x celery branch, chopped finely; 1 x fennel bulb, chopped finely; 1 x tomato, diced; 12 x scallops with coral; 12 x large shrimp, deveined; 1 tbsp chervil, chopped; 1 tbsp parsley, chopped; 1.5 oz Parmesan cheese, finely grated