Potage Crécy (French Carrot Soup)

Name: Potage Crécy (French Carrot Soup)
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: European, French, Mediterranean
Ingredients: 1 onion, chopped; 2 garlic cloves, chopped; 2 tbsp butter; 4 cups (520 g) carrots, peeled and cut into rounds; 1 large potato, peeled and cut into large dice; 5 cups (1.25 litres) vegetable or chicken broth (see note); 2 slices white or whole wheat bread, diced; Parsley leaves, to taste