Shop a day or more in advance for the ingredients but the fresher the better! Here are the ingredients-- Please read through a couple of times and take time to get table and cutting board and knife ready (to cut leeks and cauliflower, possibly the potatoes and carrots and the squash without peeling it if desired but those hard veggies can be cooked whole and then cut.)
Best to have two or more large pots and a cup to scoop soup along the way when blending and mixing all the components.
2 large bunches of leeks (about 6 with long stems),
1 butternut and/or another kind of squash.
4-6