Creamed Lima Beans

Name: Creamed Lima Beans
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: American
Ingredients: 10 ounce pkg large frozen lima beans; 2 Tablespoons chopped onion; Sprinkle of garlic powder (optional); 1 Tablespoon butter; 1 Tablespoon flour; 1/2 cup milk; 1 - 2 Tablespoons brown sugar (depending on your taste); 1/2 cup sour cream