Classic Pot Roast

Name: Classic Pot Roast
Ingredients: Olive Oil; 1 large yellow onion, chopped; 4 carrots, peeled & cut into 2-inch pieces; Sea salt & freshly ground black pepper, to taste; 3 pounds (1.5 kilo) beef chuck roast; 1 cup (237 ml) sweet vermouth; 2 tablespoons (28 grams) butter; 1 tablespoon (11 grams) flour; 2 cups (.5L) beef broth (chicken works fine, too); Few sprigs of fresh thyme; 3 to 4-inch (7.5 cm to 10 cm) piece of frsh rosemary