Chicken and Broccoli Casserole Recipe

Ingredients

• 1 stick butter
• 1 medium onion, diced
• 1 1/2 teaspoons garlic, minced
• 1 cup all-purpose flour
• 1/2 (32 ounce) container chicken broth
• 1 1/2 cups milk
• 2 teaspoons chicken bouillon granules
• 1 cup sour cream
• 1 cup shredded Colby-Jack cheese
• 1 cup shredded Cheddar cheese
• 1 pound cooked chicken breasts, shredded
• 3 cups chopped cooked broccoli
• salt and ground black pepper to taste
• 4 cups crushed cornflakes
• 1 tablespoon butter, melted