The secret here is boiling the potatoes directly in savory broth, infusing them with deep flavor right from the start. These dairy-free garlic mashed potatoes deliver the rich, comforting texture you expect from a classic Southern side dish. Nutritional yeast and olive oil provide a buttery finish without any dairy. Mashing the drained potatoes in the hot pot keeps them incredibly light and fluffy. They're a fantastic companion for roasted vegetables or a hearty main course.