Leek and potato soup with bacon

Method
Prep:10min  ›  Cook:45min  ›  Ready in:55min 

1. Melt the butter;
2. Cook bacon and set it aside;
3. Sweat the onion, garlic, celery and leek until well cooked;
4. Add potatoes, cover with stock and bring to a boil until potatoes are coming apart;
5. Add milk little by little and blend, checking the consistency as you go along (more milk if you want it thinner, less if you want it thicker) - you may leave some bigger chunks of potatoes if you want;
6. Add the bacon that was set aside, salt and black pepper to taste, I prefer not to add any salt as the bacon and stock take care of that, but plenty of freshly ground black pepper.