bowl of potato leek soup with crispy leek tops and leek oil

No-Waste Potato Leek Soup

Growing up with a Japanese mother you learn about mottainai, the loose English meaning is "do not waste", though a more literal meaning includes "what a shame", meaning that it's unfortunate to waste anything out of respect for who created it. This soup embodies that principle. I make leek butter from the whites, and crispy leek shards from the normally unused greens, plus bonus leek oil. I use potato flakes (a long-time pantry staple for me), so I can make only what I'll eat in a sitting, but if you use fresh potatoes I have instructions and an idea for you as well.