Creamy Chicken and Noodles

Ingredients

• ✓ 1 (16 ounce) package egg noodles
• ✓ ¼ cup butter
• ✓ ¼ cup chopped onion
• ✓ 1 tablespoon minced garlic
• ✓ 6 tablespoons all-purpose flour
• ✓ 1 cup milk
• ✓ 1 cup half-and-half
• ✓ 30 ounces chicken broth
• ✓ 1 (3 pound) rotisserie chicken, bones removed and meat cut into bite-size pieces
• ✓ 1 cup sour cream
• ✓ salt and ground black pepper to taste