Gnocchi With Broccoli Fontina Sauce with broth

14 cups water 10 cups broccoli florets 2 (16 ounce) boxes vacuum-packed gnocchi 2 teaspoons olive oil 3/4 cup finely chopped onion 6 garlic cloves , minced 1[...]

1 (17 1/2 ounce) package gnocchi 1 1/2 lbs broccoli rabe , tough stems removed and coarsely chopped, about 8 cups 1 lb Italian sausage , cut into[...]