Gather all ingredients.
Cook chopped bacon in a skillet over medium heat, stirring occasionally, until evenly browned, 8 to 10 minutes. Drain bacon pieces on a paper towel-lined plate.
Melt butter in a skillet with a lid over medium-low heat. Add onion; cook and stir until onion is translucent, about 5 minutes. Stir in cooked bacon, green beans, potatoes, garlic, and chicken broth.
Bring to a boil, cover, and simmer over low heat until green beans are tender, about 10 minutes.
Sprinkle with vinegar, salt, and pepper; serve.
