Cauliflower Broccoli Cheese Soup

Name: Cauliflower Broccoli Cheese Soup
Ingredients: 2 cups diced sweet onion; 2 cups sliced carrots (about 40 baby carrots = 8 ounces); 1 lb broccoli (large bunch); 1 lb cauliflower (small head); 3 Tablespoons butter; 3 Tablespoons olive oil; 1 1/2 teaspoons sea salt; 1 Tablespoon fresh thyme (leaves removed from stem) or 1 teaspoon dried; 2 Tablespoons butter; 2 Tablespoons flour; 2 cups heavy whipping cream; 1 1/4 cup chicken broth (I make this with water and a bouillon paste); 8 ounces Gouda, grated or chopped (if using slices); 8 ounces Sharp Cheddar cheese, grated (4 cups); 1/4 teaspoon fresh ground black pepper; 1/2 teaspoon nutmeg