Dungeness Crab and Cauliflower Risotto

6 cups water or light crab broth 1 1/2 tablespoons olive oil 2 large shallots, chopped finely 1 medium fennel bulb, chopped finely 1 medium head cauliflower, cut into ½ inch florettes 2 cups arborio rice or medium-grain white rice 1/3 cup dry white wine 3 tablespoons butter 1/4 cup mascarpone cheese 2 tablespoons chopped […]