Chicken and Cauliflower in Garam Masala–Tomato Sauce

Name: Chicken and Cauliflower in Garam Masala–Tomato Sauce
Ingredients: 1 tablespoon garam masala; 1 1/2 teaspoon table salt; 1/2 teaspoon cayenne pepper; 4 (6- to 8-ounce) boneless, skinless chicken breasts , trimmed and cut into 1-inch pieces; 3 tablespoons vegetable oil , divided; 1 1/2 tablespoons grated fresh ginger , divided; 1/2 head cauliflower (1 pound), cored and cut into 1⁄2-inch florets (about 3½ cups); 1 onion , chopped fine (1 cup); 3 garlic cloves , minced (3 teaspoons); 1 (28-ounce) can crushed tomatoes; 3/4 cup heavy cream