vegetable oil (cold-pressed recommended) or 1 tbsp oil and 1 knob butter if preferred but then the soup isn’t totally plant-based, onion, in half-moon slices, leek, thinly sliced, garlic, sliced, celery, sliced, large potato, peeled & diced, parsnip, peeled and diced, apples, peeled and diced, dried oregano, dried rosemary, vegetable stock (I used “Marigold” powder), Salt