Southern Green Beans with Potatoes and Bacon

Bahan-bahan (8 porsi)

• ½ pound bacon (cooked (3-4 tablespoons grease reserved))
• 1 small onion (diced)
• 2 pounds whole green beans (ends trimmed)
• 1½ cups chicken stock
• 1½ teaspoons granulated garlic or garlic powder (divided)
• 1 teaspoon kosher salt (divided)
• ½ teaspoon freshly ground black pepper (divided)
• 2 pounds baby potatoes (halved)
• 2 tablespoons butter